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Scientific Instruments

Environmental Testing Manager

Knowledge Graph Entities
Dominant · Common Crawl ρ=0.490

AI recommendation signal analysis across 132 domains for the Environmental Testing Manager persona in Scientific Instruments.

132Domains Tracked
Environmental Testing Manager_persona.report
EntityScore
LC GC Europe
95.9
L C G C North America
65.5
LECO Corporation
56.4
Envision Nexus
56.4
Digital Journal
51.7
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About This Report

How to use this page

Persona view: this page is scoped to this persona's queries alone.
Use Case

Check your knowledge-graph footprint

Wikidata is the structured knowledge graph behind Wikipedia, search engines, and many AI systems. If the graph does not know a brand, machines have less to anchor an answer on. See which entities carry this segment's topics and brands, and whether its top domains have an entity at all.

How It's Calculated

Where the numbers come from

We scan every Wikidata entity record (labels, descriptions, property values) for this segment's topic phrases and brand hostnames. Entity records are short structured data, so counts run far smaller than article text. Coverage checks which entities claim each domain as an official website.

Overview

What's on this page

Top-entity charts, the full entity table, and a knowledge-graph coverage check for this segment's most LLM-recommended domains.

Segment Totals

Knowledge graph at a glance

How much of the Wikidata knowledge graph touches Environmental Testing Manager. Entity records are short structured data (labels, descriptions, property values), so these counts run far smaller than Wikipedia article text; what matters is which entities show up, not raw volume.

179K
Entities With Topic Matches
529
Entities Mentioning Brands
215K
Topic Phrase Matches
551
Brand Mentions
Top Domains

Knowledge graph coverage

Whether a Wikidata entity claims each of this segment's most LLM-recommended domains as its official website. A brand without an entity is invisible to systems that navigate the web through the knowledge graph.

18 of 25 top domains for Environmental Testing Manager have a knowledge-graph entity.

Wikidata

Top knowledge-graph entities

The entity records where Environmental Testing Manager's brands and topics appear. Brand Mentions is the more reliable single ranking here; broadly used phrases can surface large unrelated entities in the topic view. Blended merges the two on a log scale (brand mentions weighted higher, 0 to 100). Bars and entity names link to the record; entities with no label show their Wikidata ID. The table follows the selected view.


EntityBlendedBrand MentionsTopic Matches
LC GC Europe95.944
L C G C North America65.522
LECO Corporation56.421
Envision Nexus56.421
Digital Journal51.730
Merck KGaA41.020
Commonly Practiced Quality Control and Quality Assurance Procedures for Gas Chromatography-Mass Spectrometry Analysis in Forensic Urine Drug-Testing Laboratories40.005
gas chromatography-mass spectrometry35.904
Salting-out assisted liquid/liquid extraction with acetonitrile: a new high throughput sample preparation technique for good laboratory practice bioanalysis using liquid chromatography-mass spectrometry35.904
Recent Trends in Sample Preparation and Liquid Chromatography/Mass Spectrometry for Pesticide Residue Analysis in Food and Related Matrixes35.904
Screening and analysis of polar pesticides in environmental monitoring programmes by coupled-column liquid chromatography and gas chromatography-mass spectrometry35.904
Quality assurance/quality control for the determination of polycyclic aromatic hydrocarbons and phthalate esters in soils using gas chromatography-mass spectrometry35.904
A new reliable sample preparation for high throughput focused steroid profiling by gas chromatography-mass spectrometry35.904
Objective set of criteria for optimization of sample preparation procedures for ultra-high throughput untargeted blood plasma lipid profiling by ultra performance liquid chromatography-mass spectrometry35.904
High throughput analysis of atmospheric volatile organic compounds by thermal injection – isothermal gas chromatography – time-of-flight mass spectrometry35.904
Method validation and dissipation kinetics of four herbicides in maize and soil using QuEChERS sample preparation and liquid chromatography tandem mass spectrometry35.904
Quality control in quantification of volatile organic compounds analysed by thermal desorption-gas chromatography-mass spectrometry35.904
Non-targeted metabolomics study for the analysis of chemical compositions in three types of tea by using gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry35.904
Analysis of pesticides residues in fresh produce using buffered acetonitrile extraction and aminopropyl cleanup with gas chromatography/triple quadrupole mass spectrometry, liquid chromatography/triple quadrupole mass spectrometry, gas chromatograph35.904
High throughput liquid chromatography/mass spectrometry bioanalysis using 96-well disk solid phase extraction plate for the sample preparation35.904
Application of Stir Bar Sorptive Extraction and Gas Chromatograph Mass Spectrometer to the Phthalic Acid Esters Analysis in Seawater35.904
High throughput sample preparation in combination with gas chromatography coupled to triple quadrupole tandem mass spectrometry (GC–MS/MS): A smart procedure for (ultra)trace analysis of brominated flame retardants in fish35.904
Analytical method validation for terbutryn using gas chromatography/ion trap, gas chromatography/mass selective detector, and liquid chromatography/triple quadrupole mass spectrometers35.904
gas chromatograph35.904
Analysis of dexamethasone and betamethasone in bovine urine by purification with an "on-line" immunoaffinity chromatography-high-performance liquid chromatography system and determination by gas chromatography-mass spectrometry35.904
Quantitative determination of alpha-, beta-, gamma- and delta-tocopherols in human serum by high-performance liquid chromatography and gas chromatography-mass spectrometry as trimethylsilyl derivatives with a two-step sample preparation35.904
Simultaneous determination of 24 personal care products in fish muscle and liver tissues using QuEChERS extraction coupled with ultra pressure liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometer analyses35.904
Revisiting quick, easy, cheap, effective, rugged, and safe parameters for sample preparation in pesticide residue analysis of lettuce by liquid chromatography-tandem mass spectrometry35.904
analytical chemistry30.903
laboratory equipment30.903
liquid chromatography–mass spectrometry30.903
Workplace monitoring for volatile organic compounds using thermal desorption-gas chromatography-mass spectrometry30.903
Characterization of laboratory simulated road paving-like asphalt by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
High-performance liquid chromatography versus solid-phase extraction for post-derivatization cleanup prior to gas chromatography-electron-capture negative-ion mass spectrometry of a product derived from an ethylene oxide DNA adduct30.903
Chemical characterization of laboratory simulated road paving-like asphalt fume generated by gas chromatography-mass spectrometry and high performance liquid chromatography-fluorescence techniques30.903
Electromembrane extraction30.903
Identification of volatile organic compounds emitted by a naturally aged book using solid-phase microextraction/gas chromatography/mass spectrometry30.903
Toxicological determination and in vitro metabolism of the designer drug methylenedioxypyrovalerone (MDPV) by gas chromatography/mass spectrometry and liquid chromatography/quadrupole time-of-flight mass spectrometry30.903
Specific method for determining uric acid in serum using high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Analysis of volatile organic compounds in human urine by headspace gas chromatography-mass spectrometry with a multipurpose sampler30.903
Sample preparation and liquid chromatography-tandem mass spectrometry for multiple steroids in mammalian and avian circulation30.903
Characterization of arachidonic acid metabolites through the 12-lipoxygenase pathway in human epidermis by high-performance liquid chromatography and gas chromatography/mass spectrometry30.903
Hyphenation of aqueous liquid chromatography to pyrolysis-gas chromatography and mass spectrometry for the comprehensive characterization of water-soluble polymers30.903
Expediting the method development and quality control of reversed-phase liquid chromatography electrospray ionization mass spectrometry for pharmaceutical analysis by using an LC/MS performance test mix.30.903
Determination of platinum in urine, ultrafiltrate, and whole plasma by isotope dilution gas chromatography-mass spectrometry compared to electrothermal atomic absorption spectrometry30.903
Homogeneous sample preparation for automated high throughput analysis with matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry30.903
Analyses of compound libraries obtained by high-throughput parallel synthesis: strategy of quality control by high-performance liquid chromatography, mass spectrometry and nuclear magnetic resonance techniques.30.903
High throughput log D determination using liquid chromatography-mass spectrometry30.903
Development of a multibed sorption trap, comprehensive two-dimensional gas chromatography, and time-of-flight mass spectrometry system for the analysis of volatile organic compounds in human breath30.903
Assessment of the pollutant elimination efficiency by gas chromatography/mass spectrometry, liquid chromatography-mass spectrometry and -tandem mass spectrometry. Comparison of conventional and membrane-assisted biological wastewater treatment proce30.903
A microcapillary trap cartridge-microcapillary high-performance liquid chromatography electrospray ionization emitter device capable of peptide tandem mass spectrometry at the attomole level on an ion trap mass spectrometer with automated routine op30.903
Nanoflow liquid chromatography coupled to matrix-assisted laser desorption/ionization mass spectrometry: sample preparation, data analysis, and application to the analysis of complex peptide mixtures30.903
Comprehensive analysis of a multidimensional liquid chromatography mass spectrometry dataset acquired on a quadrupole selecting, quadrupole collision cell, time-of-flight mass spectrometer: I. How much of the data is theoretically interpretable by s30.903
Interpretation of high-throughput liquid chromatography mass spectrometry data for quality control analysis and analytical method development30.903
Analysis of human serum by liquid chromatography-mass spectrometry: improved sample preparation and data analysis30.903
Negative ion chemical ionization gas chromatography-mass spectrometry and atmospheric pressure chemical ionization liquid chromatography-mass spectrometry of low-dosed and/or polar drugs in plasma.30.903
Application of parallel liquid chromatography/mass spectrometry for high throughput microsomal stability screening of compound libraries30.903
Sampling and analysis of volatile organic compounds in bovine breath by solid-phase microextraction and gas chromatography-mass spectrometry.30.903
Data supporting the rat brain sample preparation and validation assays for simultaneous determination of 8 neurotransmitters and their metabolites using liquid chromatography–tandem mass spectrometry30.903
A batch correction method for liquid chromatography-mass spectrometry data that does not depend on quality control samples30.903
Realities of high-throughput liquid chromatography/mass spectrometry purification of large combinatorial libraries: a report on overall sample throughput using parallel purification30.903
Determination of two oxy-pyrimidine metabolites of diazinon in urine by gas chromatography/mass selective detection and liquid chromatography/electrospray ionization/mass spectrometry/mass spectrometry.30.903
Quantitative determination of L-775,606, a selective 5-hydroxytryptamine 1D agonist, in rat plasma using automated sample preparation and detection by liquid chromatography-tandem mass spectrometry30.903
High throughput quantitative analysis of serum proteins using glycopeptide capture and liquid chromatography mass spectrometry30.903
Comprehensive analysis of a multidimensional liquid chromatography mass spectrometry dataset acquired on a quadrupole selecting, quadrupole collision cell, time-of-flight mass spectrometer: II. New developments in Protein Prospector allow for reliab30.903
Integration of ion-exchange chromatography fractionation with reversed-phase liquid chromatography-atmospheric pressure chemical ionization mass spectrometer and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry for isolat30.903
Elucidation of n-butyl benzyl phthalate biodegradation using high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Evaluation of an on-target sample preparation system for matrix-assisted laser desorption/ionization time-of-flight mass spectrometry in conjunction with normal-flow peptide high-performance liquid chromatography for peptide mass fingerprint analyse30.903
Development of a comprehensive multidimensional liquid chromatography system with tandem mass spectrometry detection for detailed characterization of recombinant proteins30.903
First results on headspace-solid phase microextraction-gas chromatography/mass spectrometry of volatile organic compounds emitted by wax objects in museums30.903
Analysis of volatile organic compounds released from the decay of surrogate human models simulating victims of collapsed buildings by thermal desorption-comprehensive two-dimensional gas chromatography-time of flight mass spectrometry30.903
Application of liquid chromatography-electrospray ionization time-of-flight mass spectrometry for analysis and quality control of compound Danshen preparations30.903
Creation and application of psychoactive designer drugs data library using liquid chromatography with photodiode array spectrophotometry detector and gas chromatography-mass spectrometry30.903
Analysis of cyclophosphamide and five metabolites from human plasma using liquid chromatography-mass spectrometry and gas chromatography-nitrogen-phosphorus detection30.903
High-throughput sample preparation and analysis using 96-well membrane solid-phase extraction and liquid chromatography-tandem mass spectrometry for the determination of steroids in human urine30.903
Monitoring of priority pesticides and other organic pollutants in river water from portugal by gas chromatography-mass spectrometry and liquid chromatography-atmospheric pressure chemical ionization mass spectrometry30.903
Measurement of 8-hydroxy-2'-deoxyguanosine in DNA by high-performance liquid chromatography-mass spectrometry: comparison with measurement by gas chromatography-mass spectrometry30.903
High-throughput bioanalytical method using automated sample preparation and liquid chromatography-atmospheric pressure ionspray mass spectrometry for quantitative determination of glybenclamide in human serum30.903
Identification of dehydroepiandrosterone metabolites formed from human prostate homogenate using liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry30.903
Comparison of gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry for the determination of fatty and resin acids in paper mill process waters30.903
Sample preparation for determination of macrocyclic lactone mycotoxins in fish tissue, based on on-line matrix solid-phase dispersion and solid-phase extraction cleanup followed by liquid chromatography/tandem mass spectrometry30.903
Structural elucidation of hydroxylated metabolites of the isoflavan equol by gas chromatography-mass spectrometry and high-performance liquid chromatography-mass spectrometry30.903
Determination of volatile organic compounds in exhaled breath of patients with lung cancer using solid phase microextraction and gas chromatography mass spectrometry30.903
High-performance liquid chromatography-atmospheric pressure chemical ionization mass spectrometry and gas chromatography-flame ionization detection characterization of Delta5-polyenoic fatty acids in triacylglycerols from conifer seed oils30.903
Microchip for combining gas chromatography or capillary liquid chromatography with atmospheric pressure photoionization-mass spectrometry30.903
Determination of ink photoinitiators in packaged beverages by gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry30.903
Study on the photostability of guaiazulene by high-performance liquid chromatography/mass spectrometry and gas chromatography/mass spectrometry30.903
High-throughput sample preparation for the quantitation of acephate, methamidophos, omethoate, dimethoate, ethylenethiourea, and propylenethiourea in human urine using 96-well-plate automated extraction and high-performance liquid chromatography-tan30.903
Characterization of fatty acid and triacylglycerol composition in animal fats using silver-ion and non-aqueous reversed-phase high-performance liquid chromatography/mass spectrometry and gas chromatography/flame ionization detection30.903
Classification of natural resins by liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry using chemometric analysis30.903
Determination of the triacylglycerol fraction in fish oil by comprehensive liquid chromatography techniques with the support of gas chromatography and mass spectrometry data30.903
Recent developments in atmospheric pressure photoionization‐mass spectrometry30.903
Quantitative analysis of estradiol and six other steroid hormones in human saliva using a high throughput liquid chromatography-tandem mass spectrometry assay30.903
Non-polar lipids characterization of Quinoa (Chenopodium quinoa) seed by comprehensive two-dimensional gas chromatography with flame ionization/mass spectrometry detection and non-aqueous reversed-phase liquid chromatography with atmospheric pressur30.903
Comparing two metabolic profiling approaches (liquid chromatography and gas chromatography coupled to mass spectrometry) for extra-virgin olive oil phenolic compounds analysis: A botanical classification perspective.30.903
Comprehensive chemical profiling of Pinellia species tuber and processed Pinellia tuber by gas chromatography-mass spectrometry and liquid chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry30.903
Determination of the acylcoenzyme A cholesterol acyltransferase inhibitor 447C88 in plasma using gas chromatography-mass spectrometry and liquid chromatography atmospheric pressure chemical ionisation tandem mass spectrometry30.903
Gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS) in toxicological analysis. Studies on the detection of clobenzorex and its metabolites within a systematic toxicological analysis procedure by GC-MS and30.903
Liquid chromatography–mass spectrometry and gas chromatography–mass spectrometry of ω- and (ω-1)-hydroxylated metabolites of elaidic and oleic acids in human and rat liver microsomes30.903
Automated sample preparation for the determination of budesonide in plasma samples by liquid chromatography and tandem mass spectrometry30.903
Simultaneous determination of beta2-agonists in human urine by fast-gas chromatography/mass spectrometry: method validation and clinical application30.903
Deep proteogenomics; high throughput gene validation by multidimensional liquid chromatography and mass spectrometry of proteins from the fungal wheat pathogen Stagonospora nodorum30.903
Identification of a strawberry flavor gene candidate using an integrated genetic-genomic-analytical chemistry approach30.903
Characterization of bacterial lipid profiles by using rapid sample preparation and fast comprehensive two-dimensional gas chromatography in combination with mass spectrometry30.903
Identification of metabolites from liquid chromatography–coulometric array detection profiling: Gas chromatography–mass spectrometry and refractionation provide essential information orthogonal to LC–MS/microNMR30.903
A hybrid liquid chromatography–mass spectrometry strategy in a forensic laboratory for opioid, cocaine and amphetamine classes in human urine using a hybrid linear ion trap-triple quadrupole mass spectrometer30.903
Generic sample preparation combined with high-resolution liquid chromatography-time-of-flight mass spectrometry for unification of urine screening in doping-control laboratories.30.903
Evaluation of automated sample preparation, retention time locked gas chromatography-mass spectrometry and data analysis methods for the metabolomic study of Arabidopsis species30.903
Analysis of volatile organic compounds, using the purge and trap injector coupled to a gas chromatograph/ion-trap mass spectrometer: review of the results in Dutch surface water of the Rhine, Meuse, Northern Delta Area and Westerscheldt, over the pe30.903
Metabolomics Study on Quality Control and Discrimination of Three Curcuma Species based on Gas Chromatograph–Mass Spectrometry30.903
Gas chromatography/mass spectrometry (GC/MS) remains a pre-eminent discovery tool in clinical steroid investigations even in the era of fast liquid chromatography tandem mass spectrometry (LC/MS/MS).30.903
The detection of nicotine in a Late Mayan period flask by gas chromatography and liquid chromatography mass spectrometry methods30.903
Comprehensive chemical profiling of Guizhi Fuling capsule by the combined use of gas chromatography–mass spectrometry with a deconvolution software and rapid‐resolution liquid chromatography quadrupole time‐of‐flight tandem mass spectrometry30.903
An improved gas chromatography screening method for doping substances using triple quadrupole mass spectrometry, with an emphasis on quality assurance30.903
Studies on the identification of sulfadimidine in pork by high performance liquid chromatography with photodiode array detector and gas chromatograph-mass spectrometry30.903
Use of solid-phase microextraction coupled to gas chromatography-mass spectrometry for determination of urinary volatile organic compounds in autistic children compared with healthy controls.30.903
Affinity chromatography as a method for sample preparation in gas chromatography/mass spectrometry30.903
Two-dimensional liquid chromatography system for online top-down mass spectrometry30.903
The determination of total and unbound midazolam in human plasma. A comparison of high performance liquid chromatography, gas chromatography and gas chromatography/mass spectrometry30.903
Characterization of the designer drug deschloroketamine (2-methylamino-2-phenylcyclohexanone) by gas chromatography/mass spectrometry, liquid chromatography/high-resolution mass spectrometry, multistage mass spectrometry, and nuclear magnetic resona30.903
Isomer differentiation by combining gas chromatography, selective self‐ion/molecule reactions and tandem mass spectrometry in an ion trap mass spectrometer30.903
Characterization of volatile organic compounds and odorants associated with swine barn particulate matter using solid-phase microextraction and gas chromatography-mass spectrometry-olfactometry30.903
Identification of polymer types and additives in marine microplastic particles using pyrolysis-GC/MS and scanning electron microscopy30.903
Determination of 51 carbamate pesticide residues in vegetables by liquid chromatography-tandem mass spectrometry based on optimization of QuEChERS sample preparation method30.903
Tissue-specific metabolite profiling of Cyperus rotundus L. rhizomes and (+)-nootkatone quantitation by laser microdissection, ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry, and gas chromatography-mass spec30.903
Determination of breath gas composition of lung cancer patients using gas chromatography/mass spectrometry with monolithic material sorptive extraction30.903
Non-targeted metabolomic profile of Fagus sylvatica L. leaves using liquid chromatography with mass spectrometry and gas chromatography with mass spectrometry.30.903
Discovery and validation of serum protein changes in type 1 diabetes patients using high throughput two dimensional liquid chromatography-mass spectrometry and immunoassays30.903
Development of a sample preparation method for monitoring correct disulfide linkages of monoclonal antibodies by liquid chromatography–mass spectrometry30.903
Analysis and quantitation of volatile organic compounds emitted from plastics used in museum construction by evolved gas analysis–gas chromatography–mass spectrometry30.903
Qualitative and quantitative analysis of the chemical constituents in Mahuang-Fuzi-Xixin decoction based on high performance liquid chromatography combined with time-of-flight mass spectrometry and triple quadrupole mass spectrometers30.903
Chemical characterization of α-pinene secondary organic aerosol constituents using gas chromatography, liquid chromatography, and paper spray-based mass spectrometry techniques30.903
Liquid chromatography-quadrupole-time-of-flight mass spectrometry screening procedure for urine samples in forensic casework compared to gas chromatography-mass spectrometry30.903
Simultaneous qualitative and quantitative analysis of 21 mycotoxins in Radix Paeoniae Alba by ultra-high performance liquid chromatography quadrupole linear ion trap mass spectrometry and QuEChERS for sample preparation30.903
Evaluation of gas chromatography - electron ionization - full scan high resolution Orbitrap mass spectrometry for pesticide residue analysis30.903
Steroid Profiling by Gas Chromatography–Mass Spectrometry and High Performance Liquid Chromatography–Mass Spectrometry for Adrenal Diseases30.903
High Throughput and Quantitative Measurement of Microbial Metabolome by Gas Chromatography/Mass Spectrometry Using Automated Alkyl Chloroformate Derivatization30.903
Profiling of volatile organic compounds produced by clinical Aspergillus isolates using gas chromatography-mass spectrometry30.903
Optimization of Sample Preparation for the Identification and Quantification of Saxitoxin in Proficiency Test Mussel Sample using Liquid Chromatography-Tandem Mass Spectrometry30.903
A high throughput targeted and non-targeted method for the analysis of microcystins and anatoxin-A using on-line solid phase extraction coupled to liquid chromatography-quadrupole time-of-flight high resolution mass spectrometry30.903
Application of a gas chromatograph-mass spectrometer-data processor combination to the analysis of the polycyclic aromatic hydrocarbon content of airborne pollutants30.903
Qualitative and Quantitative Analysis of Volatile Components of Zhengtian Pills Using Gas Chromatography Mass Spectrometry and Ultra-High Performance Liquid Chromatography30.903
Determination of felodipine enantiomers using chiral stationary phase liquid chromatography and gas chromatography/mass spectrometry, and the study of their pharmacokinetic profiles in human and dog.30.903
Quality control techniques for routine analysis with liquid chromatography in laboratories30.903
Comparative oxidation state specific analysis of arsenic species by high-performance liquid chromatography-inductively coupled plasma-mass spectrometry and hydride generation-cryotrapping-atomic absorption spectrometry30.903
Screening and identification of drugs in human hair by high-performance liquid chromatography-photodiode-array UV detection and gas chromatography-mass spectrometry after solid-phase extraction. A powerful tool in forensic medicine30.903
High Throughput Liquid and Gas Chromatography–Tandem Mass Spectrometry Assays for Tobacco-Specific Nitrosamine and Polycyclic Aromatic Hydrocarbon Metabolites Associated with Lung Cancer in Smokers30.903
Distribution of volatile organic compounds in Sicilian groundwaters analysed by head space-solid phase micro extraction coupled with gas chromatography mass spectrometry (SPME/GC/MS).30.903
Quantitation of the Minor Tobacco Alkaloids Nornicotine, Anatabine, and Anabasine in Smokers' Urine by High Throughput Liquid Chromatography-Mass Spectrometry30.903
High throughput liquid chromatography-tandem mass spectrometry assay for mercapturic acids of acrolein and crotonaldehyde in cigarette smokers' urine.30.903
A simple and accurate HPLC method for fecal bile acid profile in healthy and cirrhotic subjects: validation by GC-MS and LC-MS30.903
Current trends and challenges in sample preparation for global metabolomics using liquid chromatography-mass spectrometry.30.903
Liquid chromatography-high-resolution mass spectrometry for pesticide residue analysis in fruit and vegetables: screening and quantitative studies.30.903
Sample preparation strategies for targeted proteomics via proteotypic peptides in human blood using liquid chromatography tandem mass spectrometry30.903
Persistent Organic Pollutant Determination in Killer Whale Scat Samples: Optimization of a Gas Chromatography/Mass Spectrometry Method and Application to Field Samples30.903
Measurement of oxidatively induced DNA damage and its repair, by mass spectrometric techniques30.903
Quality control of sweet medicines based on gas chromatography-mass spectrometry30.903
Gas chromatography-mass spectrometry and high-performance liquid chromatography-diode array detection for dating of paper ink.30.903
Recent advancements and future trends in environmental analysis: Sample preparation, liquid chromatography and mass spectrometry.30.903
Freeze-drying: an alternative method for the analysis of volatile organic compounds in the headspace of urine samples using solid phase micro-extraction coupled to gas chromatography - mass spectrometry30.903
Sample preparation for detection of low abundance proteins in human plasma using ultra-high performance liquid chromatography coupled with highly accurate mass spectrometry30.903
Identification of chemical components in Baidianling Capsule based on gas chromatography-mass spectrometry and high-performance liquid chromatography combined with Fourier transform ion cyclotron resonance mass spectrometry.30.903
Layer-by-layer functionalized porous Zinc sulfide nanospheres-based solid-phase extraction combined with liquid chromatography time-of-flight/mass and gas chromatography-mass spectrometry for the specific enrichment and identification of alkaloids f30.903
Comparison of veterinary drug residue results in animal tissues by ultrahigh-performance liquid chromatography coupled to triple quadrupole or quadrupole-time-of-flight tandem mass spectrometry after different sample preparation methods, including u30.903
Comparison of sample preparation strategies for target analysis of total thyroid hormones levels in serum by liquid chromatography-quadrupole time-of-flight-mass spectrometry.30.903
Fast and simple screening for the simultaneous analysis of seven metabolites derived from five volatile organic compounds in human urine using on-line solid-phase extraction coupled with liquid chromatography-tandem mass spectrometry30.903
On-line turbulent-flow chromatography-high-performance liquid chromatography-mass spectrometry for fast sample preparation and quantitation30.903
Multicenter evaluation of the thermo scientific prelude for measurement of immunosuppressant drugs using sample preparation liquid chromatography-tandem mass spectrometry30.903
Online turbulent flow extraction coupled with liquid chromatography-tandem mass spectrometry for high throughput screening of anabolic steroids in horse urine.30.903
Qualitative and quantitative analysis of multiple components for quality control of Deng-Zhan-Sheng-Mai capsules by ultra high performance liquid chromatography tandem mass spectrometry method coupled with chemometrics30.903
Method Validation for Analysis of Simvastatin in Human Plasma Using Liquid Chromatography Tandem Mass Spectrometry (LC-MS-MS)30.903
Comparison of liquid chromatography-isotope ratio mass spectrometry (LC/IRMS) and gas chromatography-combustion-isotope ratio mass spectrometry (GC/C/IRMS) for the determination of collagen amino acid δ13C values for palaeodietary and palaeoecologic30.903
Trimethylsilyl speciations of cathine, cathinone and norephedrine followed by gas chromatography mass spectrometry: Direct sample preparation and analysis of khatamines30.903
Analysis of banned veterinary drugs and herbicide residues in shellfish by liquid chromatography-tandem mass spectrometry (LC/MS/MS) and gas chromatography-tandem mass spectrometry (GC/MS/MS).30.903
Metabolomics of developing zebrafish embryos using gas chromatography- and liquid chromatography-mass spectrometry.30.903
Identification of organic compounds in atmospheric aerosol particles by on-line supercritical fluid extraction-liquid chromatography-gas chromatography-mass spectrometry30.903
Characterisation of organic compounds in aerosol particles from a Finnish forest by on-line coupled supercritical fluid extraction-liquid chromatography-gas chromatography-mass spectrometry30.903
Development and validation of a method for air-quality and nuisance odors monitoring of volatile organic compounds using multi-sorbent adsorption and gas chromatography/mass spectrometry thermal desorption system30.903
Determination of volatile organic compounds in urban and industrial air from Tarragona by thermal desorption and gas chromatography-mass spectrometry30.903
Volatile organic compounds in air at urban and industrial areas in the Tarragona region by thermal desorption and gas chromatography-mass spectrometry30.903
Liquid Chromatography-High Resolution Mass Spectrometry for Peptide Drug Quality Control30.903
Profiling of urinary amino-carboxylic metabolites by in-situ heptafluorobutyl chloroformate mediated sample preparation and gas chromatography-mass spectrometry.30.903
Recent applications of mass spectrometry and combined gas chromatography-mass spectrometry to pesticide residue analysis.30.903
Fast sample preparation and liquid chromatography-tandem mass spectrometry method for assaying cell lysate acetylcholine30.903
Antibiofilm activity of cashew juice pulp against Staphylococcus aureus, high performance liquid chromatography/diode array detection and gas chromatography-mass spectrometry analyses, and interference on antimicrobial drugs.30.903
Study on the quality control of cell therapy products. Determination of N-glycolylneuraminic acid incorporated into human cells by nano-flow liquid chromatography/Fourier transformation ion cyclotron mass spectrometry30.903
Sample preparation methodology for mouse heart metabolomics using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry30.903
Coupling of comprehensive two-dimensional gas chromatography with quadrupole mass spectrometry: Application to the identification of atmospheric volatile organic compounds30.903
Identification of vitamin D3 and 7-dehydrocholesterol in cow's milk by gas chromatography-mass spectrometry and their quantitation by high-performance liquid chromatography30.903
Evaluation of the on-site immunoassay drug-screening device Triage-TOX in routine forensic autopsy30.903
Identification of degradation products of saquinavir mesylate by ultra-high-performance liquid chromatography/electrospray ionization quadrupole time-of-flight tandem mass spectrometry and its application to quality control30.903
Monitoring of cefepime in human serum and plasma by micellar electrokinetic capillary chromatography: Improvement of sample preparation and validation by liquid chromatography coupled to mass spectrometry30.903
High throughput online solid phase extraction-ultra high performance liquid chromatography-tandem mass spectrometry method for polyfluoroalkyl phosphate esters, perfluoroalkyl phosphonates, and other perfluoroalkyl substances in human serum, plasma,30.903
Determination of particulate phase polycyclic aromatic hydrocarbons and their nitrated and oxygenated derivatives using gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry30.903
Liquid Chromatography-Mass Spectrometry Metabolic and Lipidomic Sample Preparation Workflow for Suspension-Cultured Mammalian Cells using Jurkat T lymphocyte Cells30.903
The specificity of multi-column liquid chromatography of neutral urinary steroids as evaluated by comparison with parallel gas chromatography and mass spectrometry30.903
Comparative study of sample preparation methods; supported liquid membrane and solid phase extraction in the determination of benzimidazole anthelmintics in biological matrices by liquid chromatography-electrospray-mass spectrometry.30.903
Identification of signature volatiles to discriminate Candida albicans, glabrata, krusei and tropicalis using gas chromatography and mass spectrometry30.903
On-line capillary liquid chromatography tandem mass spectrometry on an ion trap/reflectron time-of-flight mass spectrometer using the sequence tag database search approach for peptide sequencing and protein identification30.903
Universal Route to Polycyclic Aromatic Hydrocarbon Analysis in Foodstuff: Two-Dimensional Heart-Cut Liquid Chromatography-Gas Chromatography-Mass Spectrometry30.903
Quality control of processed Crataegi Fructus and its medicinal parts by ultra high performance liquid chromatography with electrospray ionization tandem mass spectrometry30.903
Liquid chromatography Orbitrap mass spectrometry with simultaneous full scan and tandem MS/MS for highly selective pesticide residue analysis.30.903
Determining volatile organic compounds in human blood from a large sample population by using purge and trap gas chromatography/mass spectrometry30.903
Single-Laboratory Ruggedness Testing and Validation of a Modified QuEChERS Approach To Quantify 185 Pesticide Residues in Salmon by Liquid Chromatography– and Gas Chromatography–Tandem Mass Spectrometry30.903
Assesment of endocrinal and biochemical entities through liquid chromatography-tandem mass spectrometry/mass spectrometer: Inter-relative investigation of the interaction based cardiovascular formulation30.903
Development of a sensitive and selective liquid chromatography-mass spectrometry method for high throughput analysis of paralytic shellfish toxins using graphitised carbon solid phase extraction30.903
Comparison of conventional liquid chromatography-tandem mass spectrometry versus microflow liquid chromatography-tandem mass spectrometry within the framework of full method validation for simultaneous quantification of 40 antidepressants and neurol30.903
Rapid Determination of Dichlofluanid Residues in Vegetables Using Dispersive-SPE Sample Preparation Combined with Gas Chromatography-Mass Spectrometry30.903
Liquid chromatography-tandem quadrupole mass spectrometry and comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry measurement of targeted metabolites of Methylobacterium extorquens AM1 grown on two different carbon sour30.903
Characterization of volatile organic compounds from human analogue decomposition using thermal desorption coupled to comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry30.903
Identification of new metabolites of bacterial transformation of indole by gas chromatography-mass spectrometry and high performance liquid chromatography30.903
Disopyramide determination by gas chromatography, liquid chromatography, and gas chromatography--mass spectrometry30.903
Hyphenated and comprehensive liquid chromatography × gas chromatography-mass spectrometry for the identification of Mycobacterium tuberculosis.30.903
Measurement of choline and choline metabolite concentrations using high-pressure liquid chromatography and gas chromatography-mass spectrometry30.903
A comparison of the validity of gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry analysis of urine samples II: amphetamine, methamphetamine, (±)-3,4-methylenedioxyamphetamine, (±)-3,4-methylenedioxymethamphetam30.903
Analysis of major components in water based stamp pad inks and their imprints by ultra high performance liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry30.903
Preliminary study of volatile organic compounds from breath and stomach tissue by means of solid phase microextraction and gas chromatography-mass spectrometry.30.903
Effect of solvent and electrospray mass spectrometer parameters on the charge state distribution of peptides--a case study using liquid chromatography/mass spectrometry method development for beta-endorphin assay.30.903
Evaluation of tea tree oil quality and ascaridole: a deep study by means of chiral and multi heart-cuts multidimensional gas chromatography system coupled to mass spectrometry detection30.903
Complementary fragmentation pattern analysis by gas chromatography-mass spectrometry and liquid chromatography tandem mass spectrometry confirmed the precious lignan content of Cirsium weeds.30.903
Large-scale pesticide testing in olives by liquid chromatography-electrospray tandem mass spectrometry using two sample preparation methods based on matrix solid-phase dispersion and QuEChERS.30.903
Urinary metabonomics study in a rat model in response to protein-energy malnutrition by using gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry30.903
Delta13C stable isotope analysis of atmospheric oxygenated volatile organic compounds by gas chromatography-isotope ratio mass spectrometry.30.903
System selectivity cube: a 3D visualization tool for comparing the selectivity of gas chromatography, supercritical-fluid chromatography, high-pressure liquid chromatography, and micellar electrokinetic capillary chromatography systems30.903
Validation and use of a fast sample preparation method and liquid chromatography-tandem mass spectrometry in analysis of ultra-trace levels of 98 organophosphorus pesticide and carbamate residues in a total diet study involving diversified food type30.903
High-throughput and sensitive analysis of urinary heterocyclic aromatic amines using isotope-dilution liquid chromatography-tandem mass spectrometry and robotic sample preparation system30.903
Determination of nandrolone metabolites in human urine: comparison between liquid chromatography/tandem mass spectrometry and gas chromatography/mass spectrometry30.903
Quantification of dialkylphosphate metabolites of organophosphorus insecticides in human urine using 96-well plate sample preparation and high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry30.903
Evaluation of two sample treatment methodologies for large-scale pesticide residue analysis in olive oil by fast liquid chromatography-electrospray mass spectrometry.30.903
Plasma estrone sulfate assay in men: Comparison of radioimmunoassay, mass spectrometry coupled to gas chromatography (GC-MS), and liquid chromatography-tandem mass spectrometry (LC-MS/MS).30.903
Headspace in-tube extraction gas chromatography-mass spectrometry for the analysis of hydroxylic methyl-derivatized and volatile organic compounds in blood and urine30.903
Qualitative screening for volatile organic compounds in human blood using solid‐phase microextraction and gas chromatography‐mass spectrometry30.903
Optimization of electrospray interface and quadrupole ion trap mass spectrometer parameters in pesticide liquid chromatography/electrospray ionization mass spectrometry analysis30.903
Assay of labile estrogen o-quinones, potent carcinogenic molecular species, by high performance liquid chromatography–electrospray ionization tandem mass spectrometry with phenazine derivatization30.903
Liquid chromatography and tandem mass spectrometry for the quantitative determination of ixabepilone (BMS-247550, Ixempra) in human plasma: method validation, overcoming curve splitting issues and eliminating chromatographic interferences from degra30.903
Methylmercury and inorganic mercury determination in blood by using liquid chromatography with inductively coupled plasma mass spectrometry and a fast sample preparation procedure30.903
Emission pattern of semi-volatile organic compounds from recycled styrenic polymers using headspace solid-phase microextraction gas chromatography-mass spectrometry30.903
Simultaneous analysis of fourteen tertiary amine stimulants in human urine for doping control purposes by liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry30.903
A comparison of the validity of gas chromatography- mass spectrometry and liquid chromatography- tandem mass spectrometry analysis of urine samples for morphine, codeine, 6-acetylmorphine, and benzoylecgonine30.903
Comparative determination of some phytohormones in wild-type and genetically modified plants by gas chromatography-mass spectrometry and high-performance liquid chromatography-tandem mass spectrometry.30.903
Validation of a confirmatory method for the determination of melamine in egg by gas chromatography-mass spectrometry and ultra-performance liquid chromatography-tandem mass spectrometry30.903
Multiresidue method for the determination of 77 pesticides in wine using QuEChERS sample preparation and gas chromatography with mass spectrometry30.903
Determination of 4-hydroxy-3-methoxymethamphetamine as a metabolite of methamphetamine in rats and human liver microsomes using gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry30.903
Screening processed milk for volatile organic compounds using vacuum distillation/gas chromatography/mass spectrometry.30.903
Simultaneous and high-throughput analysis of iodo-trihalomethanes, haloacetonitriles, and halonitromethanes in drinking water using solid-phase microextraction/gas chromatography-mass spectrometry: an optimization of sample preparation30.903
Determination of volatile organic compounds in recycled polyethylene terephthalate and high-density polyethylene by headspace solid phase microextraction gas chromatography mass spectrometry to evaluate the efficiency of recycling processes.30.903
Determination of volatile organic compounds in water by headspace solid-phase microextraction gas chromatography coupled to tandem mass spectrometry with triple quadrupole analyzer.30.903
Use of thermal desorption-gas chromatography-mass spectrometry (TD-GC-MS) on identification of odorant emission focus by volatile organic compounds characterisation30.903
Wastewater analysis for volatile organic sulfides using purge-and-trap with gas chromatography/mass spectrometry30.903
One- and two-dimensional gas chromatography-mass spectrometry and high performance liquid chromatography-diode-array detector fingerprints of complex substances: a comparison of classification performance of similar, complex Rhizoma Curcumae samples30.903
Urinary metanephrines by liquid chromatography tandem mass spectrometry: Using multiple quantification methods to minimize interferences in a high throughput method30.903
Development of an analytical technique and stability evaluation of 143 C3-C12 volatile organic compounds in Summa canisters by gas chromatography-mass spectrometry30.903
Evaluation of two modified quick, easy, cheap, effective, rugged and safe (QuEChERS) sample preparation methods for the analysis of baclofen and gabapentin in feeds by liquid chromatography tandem mass spectrometry30.903
Assessment of sample cleanup and matrix effects in the pesticide residue analysis of foods using postcolumn infusion in liquid chromatography–tandem mass spectrometry30.903
Reduction of animal usage by serial bleeding of mice for pharmacokinetic studies: application of robotic sample preparation and fast liquid chromatography-mass spectrometry.30.903
Editorial on “Liquid chromatography-high-resolution mass spectrometry for pesticide residue analysis in fruit and vegetables: Screening and quantitative studies” by M.M. Gómez-Ramos, C. Ferrer, O. Malato, A. Agüera and A.R. Fernández-Alba30.903
Headspace/solid-phase microextraction/gas chromatography-mass spectrometry: a screening technique for the recovery and identification of volatile organic compounds (VOC's) in postmortem blood and viscera samples30.903
Routine analysis of alcohol and nonylphenol polyethoxylates in wastewater and sludge using liquid chromatography-electrospray mass spectrometry30.903
Analysis of common and emerging brominated flame retardants in house dust using ultrasonic assisted solvent extraction and on-line sample preparation via column switching with liquid chromatography-mass spectrometry.30.903
Comprehensive Analytical Method for Semi-volatile Organic Compounds in Water Samples by Combination of Disk-type Solid-phase Extraction and Gas Chromatography-Mass Spectrometry Database System30.903
Rapid liquid chromatography-tandem mass spectrometry method for routine analysis of cyclosporin A over an extended concentration range30.903
Artifact-free quantification of free 3-chlorotyrosine, 3-bromotyrosine, and 3-nitrotyrosine in human plasma by electron capture-negative chemical ionization gas chromatography mass spectrometry and liquid chromatography-electrospray ionization tande30.903
Comparison of gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry methods to quantify alpha-tocopherol and alpha-tocopherolquinone levels in human plasma30.903
Analysis of N-glycosylation of phospholipase A2 from venom of individual bees by microbore high-performance liquid chromatography-electrospray mass spectrometry using an ion trap mass spectrometer30.903
Identification of sympathomimetic alkylamine agents in urine using liquid chromatography–mass spectrometry and comparison of derivatization methods for confirmation analyses by gas chromatography–mass spectrometry30.903
Solid-phase microextraction as a sample preparation strategy for the analysis of seleno amino acids by gas chromatography-inductively coupled plasma mass spectrometry30.903
A Novel Method for High Throughput Lipophilicity Determination by Microscale Shake Flask and Liquid Chromatography Tandem Mass Spectrometry30.903
Biotransformation of amlodipine. Identification and synthesis of metabolites found in rat, dog and human urine/confirmation of structures by gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry30.903
Comparison of gas chromatography and liquid chromatography mass spectrometric measurements for high accuracy analysis of cholesterol in human serum by isotope dilution mass spectrometry30.903
Application to routine analysis of a method to determine multiclass pesticide residues in fresh vegetables by gas chromatography/tandem mass spectrometry30.903
High-speed gradient parallel liquid chromatography/tandem mass spectrometry with fully automated sample preparation for bioanalysis: 30 seconds per sample from plasma30.903
Comparison of gas chromatography-mass spectrometry and high-performance liquid chromatography with coulometric electrode array detection for determination of alkylresorcinol metabolites in human urine30.903
Determination of toxic compounds in paper-recycling process waters by gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry30.903
Gas chromatography/mass spectrometry validation of high-performance liquid chromatography analysis of flecainide enantiomers in serum30.903
Determination of imipramine in plasma by high pressure liquid chromatography and field ionization mass spectrometry: Increased senditivity in comparison with gas chromatography mass spectrometry30.903
Improved sample preparation for the quantitative analysis of paroxetine in human plasma by stable isotope dilution negative ion chemical ionisation gas chromatography-mass spectrometry30.903
Investigation of an enhanced resolution triple quadrupole mass spectrometer for high-throughput liquid chromatography/tandem mass spectrometry assays30.903
Determination of saturated-hydrocarbon contamination in baby foods by using on-line liquid-gas chromatography and off-line liquid chromatography-comprehensive gas chromatography combined with mass spectrometry30.903
Quantitative determination of benazepril and benazeprilat in human plasma by gas chromatography-mass spectrometry using automated 96-well disk plate solid-phase extraction for sample preparation30.903
Separation of stereoisomers of several furan derivatives by capillary gas chromatography-mass spectrometry, supercritical fluid chromatography, and liquid chromatography using chiral stationary phases.30.903
Targeted N-linked glycosylation analysis of H5N1 influenza hemagglutinin by selective sample preparation and liquid chromatography/tandem mass spectrometry30.903
On-line clean-up by multidimensional liquid chromatography-electrospray ionization tandem mass spectrometry for high throughput quantification of primary and secondary phthalate metabolites in human urine30.903
Evaluation of an improved general unknown screening procedure using liquid chromatography-electrospray-mass spectrometry by comparison with gas chromatography and high-performance liquid-chromatography--diode array detection30.903
Community air monitoring for pesticides—part 2: multiresidue determination of pesticides in air by gas chromatography, gas chromatography–mass spectrometry, and liquid chromatography–mass spectrometry30.903
Direct quantitation of volatile organic compounds in packaging materials by headspace solid-phase microextraction-gas chromatography-mass spectrometry30.903
Rapid monitoring of volatile organic compounds: a comparison between gas chromatography/mass spectrometry and selected ion flow tube mass spectrometry30.903
Analysis of toxaphene and its eight congeners in sediment and fish tissue by gas chromatography-negative ion mass spectrometry30.903
Investigation of human blood plasma sample preparation for performing metabolomics using ultrahigh performance liquid chromatography/mass spectrometry30.903
Sample preparation and determination of acetylcholine in corneal epithelium cells using liquid chromatography-tandem mass spectrometry30.903
Comparison of a preliminary procedure for the general unknown screening of drugs and toxic compounds using a quadrupole-linear ion-trap mass spectrometer with a liquid chromatography–mass spectrometry reference technique30.903
Routine analysis of amphetamine and methamphetamine in biological materials by gas chromatography–mass spectrometry and on-column derivatization30.903
Measurement of toxic volatile organic compounds in indoor air of semiconductor foundries using multisorbent adsorption/thermal desorption coupled with gas chromatography-mass spectrometry30.903
Increasing sample throughput in pharmacological studies by using dual-column liquid chromatography with tandem mass spectrometry30.903
Solventless sample preparation for pesticides analysis in environmental water samples using solid-phase microextraction-high resolution gas chromatography/mass spectrometry (SPME-HRGC/MS).30.903
Simultaneous determination of 76 micropollutants in water samples by headspace solid phase microextraction and gas chromatography–mass spectrometry30.903
Quality assurance of commercial beeswax II. Gas chromatography-electron impact ionization mass spectrometry of alcohols and acids.30.903
Analysis of bumetanide in human urine by high-performance liquid chromatography with fluorescence detection and gas chromatography/mass spectrometry30.903
High throughput identification and quantification of 16 antipsychotics and 8 major metabolites in serum using ultra-high performance liquid chromatography-tandem mass spectrometry.30.903
Coordinating fingerprint determination of solid-phase microextraction/gas chromatography-mass spectrometry and chemometric methods for quality control of oxidized tallow.30.903
New designer drug 1-(3-trifluoromethylphenyl) piperazine (TFMPP): gas chromatography/mass spectrometry and liquid chromatography/mass spectrometry studies on its phase I and II metabolism and on its toxicological detection in rat urine.30.903
Application of solid-phase microextraction and gas chromatography–mass spectrometry to the determination of volatile organic compounds in end-exhaled breath samples30.903
Structural identification of nonvolatile dimerization products of glucosamine by gas chromatography-mass spectrometry, liquid chromatography-mass spectrometry, and nuclear magnetic resonance analysis30.903
Simultaneous detection of arginine, asymmetric dimethylarginine, symmetric dimethylarginine and citrulline in human plasma and urine applying liquid chromatography-mass spectrometry with very straightforward sample preparation30.903
Fast liquid chromatography-mass spectrometry glutathione measurement in whole blood: micromolar GSSG is a sample preparation artifact30.903
Qualitative and quantitative analysis of cinobufacini injection using rapid separation liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry and HPLC-photodiode array detection, a feasible strategy for the quality control of30.903
Gas chromatography—mass spectrometry in the investigation of on-column dehydration of steroid hormones during gas—liquid chromatography30.903
Determination of specific volatile organic compounds synthesised during Tuber borchii fruit body development by solid-phase microextraction and gas chromatography/mass spectrometry30.903
Multidimensional on-line sample preparation of verapamil and its metabolites by a molecularly imprinted polymer coupled to liquid chromatography-mass spectrometry30.903
Quality assurance of commercial beeswax. Part I. Gas chromatography-electron impact ionization mass spectrometry of hydrocarbons and monoesters30.903
Rapid determination of benzo(a)pyrene in olive oil samples with solid-phase extraction and low-pressure, wide-bore gas chromatography-mass spectrometry and fast liquid chromatography with fluorescence detection30.903
Urinary screening for methylphenidate (Ritalin) abuse: a comparison of liquid chromatography-tandem mass spectrometry, gas chromatography-mass spectrometry, and immunoassay methods30.903
Separation of stereoisomers of some terpene derivatives by capillary gas chromatography-mass spectrometry and high-performance liquid chromatography using beta-cyclodextrin derivative columns30.903
Sample preparation and determination of gabapentin in venous and capillary blood using liquid chromatography-tandem mass spectrometry30.903
Enzymatic tissue digestion as an alternative sample preparation approach for quantitative analysis using liquid chromatography-tandem mass spectrometry30.903
Determination of a Metolazone metabolite in human urine by high-performance liquid chromatography/diode-array detection, high-performance liquid chromatography/electrospray ionization mass spectrometry and gas chromatography/mass spectrometry30.903
Rapid determination of ketamine in urine by liquid chromatography-tandem mass spectrometry for a high throughput laboratory30.903
High-throughput sample preparation procedures for the quantitation of a new bone integrin alpha(nu)beta(3) antagonist in human plasma and urine using liquid chromatography-tandem mass spectrometry30.903
High-throughput sample preparation and simultaneous column regeneration liquid chromatography–tandem mass spectrometry method for determination of nitrogen mustard metabolites in human urine30.903
Identification of iso- and n-propylphosphonates using liquid chromatography-tandem mass spectrometry and gas chromatography-Fourier transform infrared spectroscopy30.903
Quantification of urinary excretion of 1,N6-ethenoadenine, a potential biomarker of lipid peroxidation, in humans by stable isotope dilution liquid chromatography-electrospray ionization-tandem mass spectrometry: comparison with gas chromatography-m30.903
A robust high‐throughput sample preparation and liquid chromatography/tandem mass spectrometry method for the quantitation of β‐lyase metabolites of sulfur mustard as 1,1′‐sulfonylbis‐[2‐(methylthio)ethane] in human urine30.903
Determination of thiabendazole in orange juice and rind by liquid chromatography with fluorescence detection and confirmation by gas chromatography/mass spectrometry after extraction by matrix solid-phase dispersion.30.903
Determination of Xipamide metabolite in human urine by high-performance liquid chromatography/diode-array detection, high-performance liquid chromatography/electrospray ionization mass spectrometry and gas chromatography/mass spectrometry30.903
Ultra-high pressure liquid chromatography-mass spectrometry for plant metabolomics: a systematic comparison of high-resolution quadrupole-time-of-flight and single stage Orbitrap mass spectrometers30.903
Identification by gas chromatography-mass spectrometry of the volatile organic compounds emitted from the wood-rotting fungi Serpula lacrymans and Coniophora puteana, and from Pinus sylvestris timber30.903
Determination of serum cortisol by thermospray liquid chromatography/mass spectrometry: comparison with gas chromatography/mass spectrometry30.903
On-line reversed-phase liquid chromatography-gas chromatography coupled to mass spectrometry for enantiomeric analysis of chiral compounds in fruit beverages.30.903
Application of tandem mass spectrometry combined with gas chromatography to the routine analysis of ethyl carbamate in stone-fruit spirits30.903
Gas chromatography-high-resolution time-of-flight mass spectrometry in pesticide residue analysis: advantages and limitations30.903
Determination of type B fumonisin mycotoxins in maize and maize-based products by liquid chromatography/tandem mass spectrometry using a QqQlinear ion trap mass spectrometer.30.903
Development, validation and determination of multiclass pesticide residues in cocoa beans using gas chromatography and liquid chromatography tandem mass spectrometry.30.903
Identification and quantification of (polymeric) hindered-amine light stabilizers in polymers using pyrolysis-gas chromatography-mass spectrometry and liquid chromatography-ultraviolet absorbance detection-evaporative light scattering detection.30.903
Development and validation of a liquid chromatography and tandem mass spectrometry method for determination of roscovitine in plasma and urine samples utilizing on-line sample preparation30.903
Monoamines and their metabolites in cerebrospinal fluid of patients with senile dementia of Alzheimer type using high performance liquid chromatography and gas chromatography-mass spectrometry30.903
High throughput qualitative analysis of polyphenols in tea samples by ultra-high pressure liquid chromatography coupled to UV and mass spectrometry detectors30.903
Determination of low level nitrite and nitrate in biological, food and environmental samples by gas chromatography-mass spectrometry and liquid chromatography with fluorescence detection30.903
On-line solid-phase extraction combined with liquid chromatography-tandem mass spectrometry for high throughput analysis of 11-nor-Delta9-tetrahydrocannabinol-9-carboxylic acid in urine.30.903
In vitro and in vivo investigation of metabolic fate of rifampicin using an optimized sample preparation approach and modern tools of liquid chromatography-mass spectrometry30.903
Comparative analysis of odorous volatile organic compounds between direct injection and solid-phase microextraction: development and validation of a gas chromatography-mass spectrometry-based methodology30.903
Ultra-Sensitive Measurements of 11-Nor-Δ9-Tetrahydrocannabinol-9-Carboxylic Acid in Oral Fluid by Microflow Liquid Chromatography–Tandem Mass Spectrometry Using a Benchtop Quadrupole/Orbitrap Mass Spectrometer30.903
Response surface optimization for determination of volatile organic compounds in water samples by headspace-gas chromatography-mass spectrometry method30.903
Determination of thromboxanes, leukotrienes and lipoxins using high-temperature capillary liquid chromatography-tandem mass spectrometry and on-line sample preparation30.903
Method validation and comparison of acetonitrile and acetone extraction for the analysis of 169 pesticides in soya grain by liquid chromatography-tandem mass spectrometry30.903
Quantitative analysis of tetramethylenedisulfotetramine (tetramine) spiked into beverages by liquid chromatography-tandem mass spectrometry with validation by gas chromatography-mass spectrometry30.903
Determination of tellurium in urine by isotope dilution gas chromatography/mass spectrometry using (4-fluorophenyl)magnesium bromide as a derivatizing agent and a comparison with electrothermal atomic absorption spectrometry30.903
Automatic on-line monitoring of atmospheric volatile organic compounds: gas chromatography-mass spectrometry and gas chromatography-flame ionization detection as complementary systems30.903
Determination of hormonal growth promoters in bovine hair: comparison of liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry methods for estradiol benzoate and nortestosterone decanoate.30.903
A candidate reference method for the determination of uric acid in serum based on high performance liquid chromatography, compared with an isotope dilution-gas chromatography-mass spectrometer method30.903
Quantification of endocrine disruptors and pesticides in water by gas chromatography-tandem mass spectrometry. Method validation using weighted linear regression schemes30.903
Determination of oxymatrine and its metabolite matrine in rat blood and dermal microdialysates by high throughput liquid chromatography/tandem mass spectrometry30.903
High throughput screening various abused drugs and metabolites in urine by liquid chromatography-heated electrospray ionization/tandem mass spectrometry30.903
Linear and cyclic methylsiloxanes in air by concurrent solvent recondensation–large volume injection–gas chromatography–mass spectrometry30.903
Determination of Sudan dye residues in eggs by liquid chromatography and gas chromatography-mass spectrometry30.903
Fractionation by liquid chromatography combined with comprehensive two-dimensional gas chromatography-mass spectrometry for analysis of cyclics in oligomerisation products of Fischer-Tropsch derived light alkenes30.903
Headspace solid phase microextraction/gas chromatography-mass spectrometry combined to chemometric analysis for volatile organic compounds determination in canine hair: a new tool to detect dog contamination by visceral leishmaniasis30.903
Comparison of two common adsorption materials for thermal desorption gas chromatography - mass spectrometry of biogenic volatile organic compounds.30.903
Ionic liquid supported three-phase liquid-liquid-liquid microextraction as a sample preparation technique for aliphatic and aromatic hydrocarbons prior to gas chromatography-mass spectrometry30.903
Matrix Effects and Interferences of Different Citrus Fruit Coextractives in Pesticide Residue Analysis Using Ultrahigh-Performance Liquid Chromatography-High-Resolution Mass Spectrometry30.903
Structural elucidation of in vivo metabolites of penehyclidine in rats by the method of liquid chromatography-mass spectrometry, gas chromatography-mass spectrometry and isotope ion cluster30.903
Validation of a high throughput method for serum/plasma testosterone using liquid chromatography tandem mass spectrometry (LC-MS/MS).30.903
Determination of pesticide residues in olives and olive oil by matrix solid-phase dispersion followed by gas chromatography/mass spectrometry and liquid chromatography/tandem mass spectrometry30.903
Simultaneous determination of cyclophosphamide, ifosfamide, doxorubicin, epirubicin and daunorubicin in human urine using high-performance liquid chromatography/electrospray ionization tandem mass spectrometry: bioanalytical method validation.30.903
Characteristics of volatile organic compounds produced from five pathogenic bacteria by headspace-solid phase micro-extraction/gas chromatography-mass spectrometry30.903
Determination of 16 phthalate metabolites in urine using automated sample preparation and on-line preconcentration/high-performance liquid chromatography/tandem mass spectrometry30.903
Metabonomics investigation of human urine after ingestion of green tea with gas chromatography/mass spectrometry, liquid chromatography/mass spectrometry and (1)H NMR spectroscopy.30.903
High throughput and sensitive determination of trazodone and its primary metabolite, m-chlorophenylpiperazine, in human plasma by liquid chromatography-tandem mass spectrometry30.903
A study of the analytical behaviour of selected new molecular entities using electrospray ionisation ion trap mass spectrometry, liquid chromatography, gas chromatography and polarography and their determination in serum at therapeutic concentration30.903
Novel, highly robust method of carbohydrate pre-purification by two-dimensional liquid chromatography prior to liquid chromatography/mass spectrometry or gas chromatography/mass spectrometry30.903
Novel solid-phase extraction protocol for 11-nor-9-carboxy-delta9-tetrahydrocannabinol from urine samples employing a polymeric mixed-mode cation-exchange resin, Strata-X-C, suitable for gas chromatography-mass spectrometry or liquid chromatography-30.903
Applications of Hadamard transform to gas chromatography/mass spectrometry and liquid chromatography/mass spectrometry30.903
Pesticide residue analysis of a dietary ingredient by gas chromatography/selected-ion monitoring mass spectrometry using neutral alumina solid-phase extraction cleanup30.903
Multimode gradient high performance liquid chromatography mass spectrometry method applicable to metabolomics and environmental monitoring30.903
Quantification of selected volatile organic compounds in human urine by gas chromatography selective reagent ionization time of flight mass spectrometry (GC-SRI-TOF-MS) coupled with head-space solid-phase microextraction (HS-SPME).30.903
A preliminary identification and determination of characteristic volatile organic compounds from cotton, polyester and terry-towel by headspace solid phase microextraction gas chromatography-mass spectrometry.30.903
Development of C18-functionalized magnetic silica nanoparticles as sample preparation technique for the determination of ergosterol in cigarettes by microwave-assisted derivatization and gas chromatography/mass spectrometry30.903
Analysis of semicarbazide in baby food by liquid chromatography tandem mass spectrometry (LC-MS-MS)--in-house method validation30.903
Off-line high-performance liquid chromatography and solid-phase extraction clean-up for confirmation of pesticide residues in fresh produce by gas chromatography-mass spectrometry30.903
High throughput screening and antioxidant assay of dibenzo[a,c]cyclooctadiene lignans in modified-ultrasonic and supercritical fluid extracts of Schisandra chinensis Baill by liquid chromatography--mass spectrometry and a free radical-scavenging met30.903
Exploring the fatty acids of vernix caseosa in form of their methyl esters by off-line coupling of non-aqueous reversed phase high performance liquid chromatography and gas chromatography coupled to mass spectrometry30.903
Construction of an automated gas chromatography/mass spectrometry system for the analysis of ambient volatile organic compounds with on-line internal standard calibration30.903
Screening volatile organic compounds (VOCs) emissions from five marine phytoplankton species by head space gas chromatography/mass spectrometry (HS-GC/MS).30.903
Determination of household chemicals using gas chromatography and liquid chromatography with tandem mass spectrometry.30.903
Comparison of four extraction methods for the analysis of 24 pesticides in soil samples with gas chromatography-mass spectrometry and liquid chromatography-ion trap-mass spectrometry30.903
Quality control of medicinal herbs Fructus gardeniae, Common Andrographis Herb and their preparations for their active constituents by high-performance liquid chromatography-photodiode array detection-electrospray mass spectrometry30.903
Determination of volatile organic compounds in the dried leaves ofSalviaspecies by solid-phase microextraction coupled to gas chromatography mass spectrometry30.903
Comparative evaluation of liquid chromatography-mass spectrometry versus gas chromatography-mass spectrometry for the determination of hexabromocyclododecanes and their degradation products in indoor dust30.903
Simultaneous determination of nineteen hallucinogenic tryptamines/beta-calbolines and phenethylamines using gas chromatography-mass spectrometry and liquid chromatography-electrospray ionisation-mass spectrometry30.903
Oxidative Degradation of Polysorbate Surfactants Studied by Liquid Chromatography–Mass Spectrometry30.903
Autosampler programming for improved sample throughput in liquid chromatography/mass spectrometry30.903
High throughput analysis of cerebrosides from the sea cucumber Pearsonothria graeffei by liquid chromatography-quadrupole-time-of-flight mass spectrometry30.903
Simultaneous quantification of polar and non-polar volatile organic compounds in water samples by direct aqueous injection-gas chromatography/mass spectrometry30.903
Detection and quantification of sucrose as dietary biomarker using gas chromatography and liquid chromatography with mass spectrometry30.903
Characterization of boldione and its metabolites in human urine by liquid chromatography/electrospray ionization mass spectrometry and gas chromatography/mass spectrometry30.903
Method validation of microcystins in water and tissue by enhanced liquid chromatography tandem mass spectrometry30.903
Online in situ analysis of selected semi-volatile organic compounds in water by automated microscale solid-phase extraction with large-volume injection/gas chromatography/mass spectrometry30.903
Elucidation of urinary metabolites of fluoxymesterone by liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry30.903
Determination of sertraline in human plasma by high-performance liquid chromatography-electrospray ionization mass spectrometry and method validation30.903
Multiresidue liquid chromatography tandem mass spectrometry determination of 52 non gas chromatography-amenable pesticides and metabolites in different food commodities.30.903
Optimization of a trypsin-bioreactor coupled with high-performance liquid chromatography-electrospray ionization tandem mass spectrometry for quality control of biotechnological drugs.30.903
Method development for the determination of residual fluorotelomer raw materials and perflurooctanoate in fluorotelomer-based products by gas chromatography and liquid chromatography mass spectrometry30.903
Arsenic speciation in water by high-performance liquid chromatography/inductively coupled plasma mass spectrometry-method validation and uncertainty estimation30.903
Simultaneous determination of 405 pesticide residues in grain by accelerated solvent extraction then gas chromatography-mass spectrometry or liquid chromatography-tandem mass spectrometry30.903
High throughput therapeutic drug monitoring of clozapine and metabolites in serum by on-line coupling of solid phase extraction with liquid chromatography-mass spectrometry30.903
Total Laboratory Automation and Matrix-Assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry Improve Turnaround Times in the Clinical Microbiology Laboratory: a Retrospective Analysis30.903
Plasma metabonomics study of rheumatoid arthritis and its Chinese medicine subtypes by using liquid chromatography and gas chromatography coupled with mass spectrometry.30.903
Determination of volatile organic compounds in exhaled breath of heart failure patients by needle trap micro-extraction coupled with gas chromatography-tandem mass spectrometry30.903
High throughput and accurate serum proteome profiling by integrated sample preparation technology and single-run data independent mass spectrometry analysis.30.903
Investigations of S-transnitrosylation reactions between low- and high-molecular-weight S-nitroso compounds and their thiols by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Simultaneous determination of 12 vitamin D compounds in human serum using online sample preparation and liquid chromatography-tandem mass spectrometry30.903
Ultra-high performance liquid chromatography coupled with quadrupole/time of flight mass spectrometry based chemical profiling approach for the holistic quality control of complex Kang-Jing formula preparations30.903
Application of ultrahigh‐performance liquid chromatography coupled with mass spectrometry for analysis of lignans and quality control of Fructus Schisandrae chinensis30.903
In-line sampling with gas chromatography–mass spectrometry to monitor ambient volatile organic compounds30.903
Validation of a radioimmunoassay for (+)-abscisic acid in extracts of apple and sweet-pepper tissue using high-pressure liquid chromatography and combined gas chromatography-mass spectrometry30.903
Gas chromatography-mass spectrometry with high-performance liquid chromatography prepurification for monitoring the endonuclease III-mediated excision of 5-hydroxy-5,6-dihydrothymine and 5,6-dihydrothymine from gamma-irradiated DNA.30.903
Solid-phase microextraction coupled to gas chromatography-mass spectrometry followed by multivariate data analysis for the identification of volatile organic compounds as possible biomarkers in lung cancer tissues30.903
Fast analysis of volatile organic compounds and disinfection by-products in drinking water using solid-phase microextraction-gas chromatography/time-of-flight mass spectrometry30.903
Simultaneous chemical and sensory characterization of volatile organic compounds and semi-volatile organic compounds emitted from swine manure using solid phase microextraction and multidimensional gas chromatography-mass spectrometry-olfactometry30.903
An approach to develop binary chromatographic fingerprints of the total alkaloids from Caulophyllum robustum by high performance liquid chromatography/diode array detector and gas chromatography/mass spectrometry30.903
Comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry for the forensic study of cadaveric volatile organic compounds released in soil by buried decaying pig carcasses30.903
Determination of volatile organic compounds in pen inks by a dynamic headspace needle trap device combined with gas chromatography-mass spectrometry30.903
Degradation and interconversion of plant pteridines during sample preparation and ultra-high performance liquid chromatography-tandem mass spectrometry30.903
Quantification of Tricyclic Antidepressants in Serum Using Liquid Chromatography Electrospray Tandem Mass Spectrometry (HPLC-ESI-MS/MS)30.903
Simultaneous quantitation of meperidine, normeperidine, tramadol, propoxyphene and norpropoxyphene in human plasma using solid-phase extraction and gas chromatography/mass spectrometry: Method validation and application to cardiovascular safety of t30.903
Alkaloids Profiling of Fumaria capreolata by Analytical Platforms Based on the Hyphenation of Gas Chromatography and Liquid Chromatography with Quadrupole-Time-of-Flight Mass Spectrometry.30.903
Determination of remifentanil in human plasma by liquid chromatography-tandem mass spectrometry utilizing micro extraction in packed syringe (MEPS) as sample preparation30.903
Accurate Quantitation and Analysis of Nitrofuran Metabolites, Chloramphenicol, and Florfenicol in Seafood by Ultrahigh-Performance Liquid Chromatography-Tandem Mass Spectrometry: Method Validation and Regulatory Samples.30.903
Simultaneous determination of volatile organic compounds with a wide range of polarities in urine by headspace solid-phase microextraction coupled to gas chromatography/mass spectrometry.30.903
Chemical profiling and quantification of ShenKang injection, a systematic quality control strategy using ultra high performance liquid chromatography with Q Exactive hybrid quadrupole orbitrap high-resolution accurate mass spectrometry30.903
High throughput screening of sub-ppb levels of basic drugs in equine plasma by liquid chromatography-tandem mass spectrometry30.903
Simultaneous liquid chromatography/mass spectrometry determination of both polar and "multiresidue" pesticides in food using parallel hydrophilic interaction/reversed-phase liquid chromatography and a hybrid sample preparation approach.30.903
Intra-batch effect correction in liquid chromatography-mass spectrometry using quality control samples and support vector regression (QC-SVRC).30.903
Comparison of gas chromatography/isotope ratio mass spectrometry and liquid chromatography/isotope ratio mass spectrometry for carbon stable‐isotope analysis of carbohydrates30.903
Optimizing an ultrafast generic high-performance liquid chromatography/tandem mass spectrometry method for faster discovery pharmacokinetic sample throughput30.903
Determination of vitamins D2 and D3 in selected food matrices by online high-performance liquid chromatography–gas chromatography–mass spectrometry (HPLC-GC-MS)30.903
Multiclass pesticide residue analysis in fish muscle and liver on one-step extraction-cleanup strategy coupled with liquid chromatography tandem mass spectrometry30.903
Rapid sample preparation and simultaneous quantitation of prostaglandins and lipoxygenase derived fatty acid metabolites by liquid chromatography-mass spectrometry from small sample volumes.30.903
New trend in sample preparation: on-line microextraction in packed syringe for liquid and gas chromatography applications. I. Determination of local anaesthetics in human plasma samples using gas chromatography-mass spectrometry30.903
Screening therapeutics according to their uptake across the blood-brain barrier: A high throughput method based on immobilized artificial membrane liquid chromatography-diode-array-detection coupled to electrospray-time-of-flight mass spectrometry.30.903
Impurity profiling quality control testing of synthetic peptides using liquid chromatography-photodiode array-fluorescence and liquid chromatography-electrospray ionization-mass spectrometry: the obestatin case30.903
Evaluation of purge-and-trap-high-resolution gas chromatography-mass spectrometry for the determination of 27 volatile organic compounds in marine water at the ng l(-1) concentration level30.903
Overcoming practical limitations for the application of ultrafiltration in sample preparation for liquid chromatography/ mass spectrometry of small proteins30.903
Combination of liquid chromatography/tandem mass spectrometry and gas chromatography/mass spectrometry for the detection of 21 anabolic steroid residues in bovine urine30.903
Metabonomics study of oral cancer using gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry30.903
Rapid determination of anti-estrogens by gas chromatography/mass spectrometry in urine: Method validation and application to real samples30.903
Isotope dilution-gas chromatography/mass spectrometry and liquid chromatography/electrospray ionization-tandem mass spectrometry for the determination of triiodo-L-thyronine in serum30.903
Estradiol-17 beta quantified in serum by isotope dilution-gas chromatography-mass spectrometry: reversed-phase C18 high-performance liquid chromatography compared with immuno-affinity chromatography for sample pretreatment30.903
Flexible nano- and microliter injections on a single liquid chromatography-mass spectrometry system: Minimizing sample preparation and maximizing linear dynamic range30.903
Method validation in quantitative analysis of phase I and phase II metabolites of mitragynine in human urine using liquid chromatography-tandem mass spectrometry30.903
Application of Gas Chromatography Coupled to Quadrupole-Orbitrap Mass Spectrometry for Pesticide Residue Analysis in Cereals and Feed Ingredients30.903
Further improvements in pesticide residue analysis in food by applying gas chromatography triple quadrupole mass spectrometry (GC-QqQ-MS/MS) technologies30.903
Improved quantification of livestock associated odorous volatile organic compounds in a standard flow-through system using solid-phase microextraction and gas chromatography-mass spectrometry30.903
δD and δ13C analyses of atmospheric volatile organic compounds by thermal desorption gas chromatography isotope ratio mass spectrometry30.903
Target and non-target screening of volatile organic compounds in industrial exhaust gas using thermal desorption-gas chromatography-mass spectrometry30.903
Analysis of four sulfonylurea herbicides in cereals using modified Quick, Easy, Cheap, Effective, Rugged, and Safe sample preparation method coupled with liquid chromatography-tandem mass spectrometry30.903
Rapid determination of volatile organic compounds in workplace air by protable gas chromatography-mass spectrometer30.903
Comparison of green sample preparation techniques in the analysis of pyrethrins and pyrethroids in baby food by liquid chromatography-tandem mass spectrometry30.903
Results of a European interlaboratory method validation study for the quantitative determination of lipophilic marine biotoxins in raw and cooked shellfish based on high-performance liquid chromatography-tandem mass spectrometry. Part I: collaborati30.903
Determination of pesticide residues in samples of green minor crops by gas chromatography and ultra performance liquid chromatography coupled to tandem quadrupole mass spectrometry30.903
Pesticide analysis in teas and chamomile by liquid chromatography and gas chromatography tandem mass spectrometry using a modified QuEChERS method: validation and pilot survey in real samples30.903
Planar solid phase extraction clean-up for pesticide residue analysis in tea by liquid chromatography-mass spectrometry30.903
Streamlining sample preparation and gas chromatography-tandem mass spectrometry analysis of multiple pesticide residues in tea.30.903
Liquid chromatography fractionation with gas chromatography/mass spectrometry and preparative gas chromatography-nuclear magnetic resonance analysis of selected nonylphenol polyethoxylates30.903
Evaluation of nanoflow liquid chromatography high resolution mass spectrometry for pesticide residue analysis in food.30.903
Quality control assessment of polyherbal formulation based on a quantitative determination multimarker approach by ultra high performance liquid chromatography with tandem mass spectrometry using polarity switching combined with multivariate analysi30.903
A novel method for the quality control of saffron through the simultaneous analysis of authenticity and adulteration markers by liquid chromatography-(quadrupole-time of flight)-mass spectrometry30.903
A multi-residue method for the simultaneous analysis in indoor dust of several classes of semi-volatile organic compounds by pressurized liquid extraction and gas chromatography/tandem mass spectrometry.30.903
Characterization of the volatile organic compounds of Italian 'Fossa' cheese by solid-phase microextraction gas chromatography/mass spectrometry.30.903
Shotgun analysis of membrane proteomes using a novel combinative strategy of solution-based sample preparation coupled with liquid chromatography–tandem mass spectrometry30.903
Complex Metals: An Open Access Journal30.903
High throughput quantitative analysis of the β-lyase sulfur mustard metabolite, 1,1'-sulfonylbis[2-(methylsulfinyl)ethane] in urine via high performance liquid chromatography tandem mass spectrometry30.903
Simple and Fast Sample Preparation Followed by Gas Chromatography-Tandem Mass Spectrometry (GC-MS/MS) for the Analysis of 2- and 4-Methylimidazole in Cola and Dark Beer30.903
Pressure-adjusted continual flow heart-cutting for the high throughput determination of amphetamine-type stimulant drugs in whole blood by fast multidimensional gas chromatography-mass spectrometry30.903
A multiplexed immunocapture liquid chromatography tandem mass spectrometry assay for the simultaneous measurement of myostatin and GDF-11 in rat serum using an automated sample preparation platform30.903
Analysis of phytohormones in vermicompost using a novel combinative sample preparation strategy of ultrasound-assisted extraction and solid-phase extraction coupled with liquid chromatography–tandem mass spectrometry30.903
Analysis of phthalates in wine using liquid chromatography tandem mass spectrometry combined with a hold-back column: Chromatographic strategy to avoid the influence of pre-existing phthalate contamination in a liquid chromatography system30.903
Determination of acrylamide in Chinese traditional carbohydrate-rich foods using gas chromatography with micro-electron capture detector and isotope dilution liquid chromatography combined with electrospray ionization tandem mass spectrometry30.903
Comparison of a two-dimensional liquid chromatography/mass spectrometry approach with a chip-based nanoelectrospray device for structural elucidation of metabolites in a human ADME study using a quadrupole time-of-flight mass spectrometer30.903
An improved method validation for rapid determination of acrylamide in foods by ultra-performance liquid chromatography combined with tandem mass spectrometry30.903
Analysis of bacteria degradation products of methyl parathion by liquid chromatography/electrospray time-of-flight mass spectrometry and gas chromatography/mass spectrometry30.903
Characterization of volatile organic compounds and odors by in-vivo sampling of beef cattle rumen gas, by solid-phase microextraction, and gas chromatography-mass spectrometry-olfactometry30.903
A new on-line sample preparation system for the liquid chromatography/time-of-flight mass spectrometry simultaneous analysis of pesticides in river water30.903
The corona charged aerosol detector for liquid chromatography and high field asymmetric waveform ion mobility spectrometry combined with liquid chromatography/mass spectrometry and gas chromatography.30.903
Development of a liquid chromatography-tandem mass spectrometry method using capillary liquid chromatography and nanoelectrospray ionization-quadrupole time-of-flight hybrid mass spectrometer for the detection of milk allergens30.903
Multiclass pesticide analysis in fruit-based baby food: A comparative study of sample preparation techniques previous to gas chromatography-mass spectrometry.30.903
Analysis of volatile organic compounds in pleural effusions by headspace solid-phase microextraction coupled with cryotrap gas chromatography and mass spectrometry.30.903
Application of dispersive liquid-liquid microextraction and gas chromatography with mass spectrometry for the determination of oxygenated volatile organic compounds in effluents from the production of petroleum bitumen.30.903
Detection of new propofol metabolites in human urine using gas chromatography/mass spectrometry and liquid chromatography/mass spectrometry techniques30.903
Method validation for the determination of propellant components by Soxhlet extraction and gas chromatography/mass spectrometry30.903
Comparative study of the determination of bupivacaine in human plasma by gas chromatography-mass spectrometry and high-performance liquid chromatography30.903
Internal standard tracked dilution to overcome challenges in dried blood spots and robotic sample preparation for liquid chromatography/tandem mass spectrometry assays30.903
Application of internal quality control to the analysis of quaternary ammonium compounds in surface and groundwater from Andalusia (Spain) by liquid chromatography with mass spectrometry30.903
Determination of nitroalkanes in mainstream cigarette smoke by heart-cutting multidimensional gas chromatography system coupled with mass spectrometry detection30.903
Method validation and application of a liquid chromatography–tandem mass spectrometry method for drugs of abuse testing in exhaled breath30.903
Different Types of Urinary Steroid Profiling Obtained by High-Performance Liquid Chromatography and Gas Chromatography-Mass Spectrometry in Patients with Adrenocortical Carcinoma.30.903
Anodic alumina coating for extraction of volatile organic compounds in human exhaled breath vapor30.903
Analysis of volatile organic compounds in exhaled breath by gas chromatography-mass spectrometry combined with chemometric analysis30.903
New graphene fiber coating for volatile organic compounds analysis30.903
Preparative high-performance liquid chromatography and preparative thin-layer chromatography isolation of tocainide carbamoyl-O-beta-D-glucuronide: structural characterization by gas chromatography-mass spectrometry and fast atom bombardment-mass sp30.903
Gas chromatography-mass spectrometry with headspace for the analysis of volatile organic compounds in waste water30.903
Metabolic study of methylstenbolone in horses using liquid chromatography-high resolution mass spectrometry and gas chromatography-mass spectrometry30.903
Identification and determination of norcocaine in illicit cocaine and coca leaves by gas chromatography-mass spectrometry and high-performance liquid chromatography30.903
Quantitation of ethyl carbamate in whiskey, sherry, port, and wine by gas chromatography/tandem mass spectrometry using a triple quadrupole mass spectrometer30.903
Quantitative Multiclass Pesticide Residue Analysis in Apple, Pear, and Grape by Modified QuEChERS and Liquid Chromatography Coupled to High-Resolution Mass Spectrometry.30.903
Absolute quantification of peptides by isotope dilution liquid chromatography-inductively coupled plasma mass spectrometry and gas chromatography/mass spectrometry.30.903
An automated high throughput liquid chromatography-mass spectrometry process to assess the metabolic stability of drug candidates30.903
Fully automated micro- and nanoscale one- or two-dimensional high-performance liquid chromatography system for liquid chromatography-mass spectrometry compatible with non-volatile salts for ion exchange chromatography30.903
Routine analysis by high precision gas chromatography/mass selective detector/isotope ratio mass spectrometry to 0.1 parts per mil.30.903
Isolation and measurement of urinary 8-iso-prostaglandin F2α by high-performance liquid chromatography and gas chromatography–mass spectrometry30.903
Determination of Buprenorphine in Human Plasma by Gas Chromatography-Positive Ion Chemical Ionization Mass Spectrometry and Liquid Chromatography-Tandem Mass Spectrometry30.903
Sample preparation with an automated robotic workstation for organic acid analysis by gas chromatography-mass spectrometry30.903
Use of dielectric barrier discharge ionization to minimize matrix effects and expand coverage in pesticide residue analysis by liquid chromatography-mass spectrometry.30.903
Analysis of 8-hydroxy-2'-deoxyguanosine in human urine by ultra-high performance liquid chromatography mass spectrometer method30.903
Determination of thiodiglycolic acid in urine with gas chromatography-mass spectrometer30.903
Gas-liquid chromatography system with flame ionization, phosphorus, sulfur, nitrogen, and electron capture detectors operating simultaneously for pesticide residue analysis30.903
Pesticide residue analysis in fresh produce by gas chromatography-tandem mass spectrometry30.903
Broad range analysis of endocrine disruptors and pharmaceuticals using gas chromatography and liquid chromatography tandem mass spectrometry30.903
Off-line solid phase extraction and liquid chromatography-tandem mass spectrometry method for the quantitation of brivaracetam acid metabolites: Method validation and application to in vitro metabolism assays.30.903
Qualitative characterization of SRM 1597a coal tar for polycyclic aromatic hydrocarbons and methyl-substituted derivatives via normal-phase liquid chromatography and gas chromatography/mass spectrometry30.903
A review of analytical procedures for the simultaneous determination of medically important veterinary antibiotics in environmental water: Sample preparation, liquid chromatography, and mass spectrometry30.903
High-throughput multiclass screening method for antibiotic residue analysis in meat using liquid chromatography-tandem mass spectrometry: a novel minimum sample preparation procedure30.903
Gas chromatography and ultra high performance liquid chromatography tandem mass spectrometry methods for the determination of selected endocrine disrupting chemicals in human breast milk after stir-bar sorptive extraction.30.903
Rapid determination of N,N-diethyl-m-toluamide and permethrin in human plasma by gas chromatography-mass spectrometry and pyridostigmine bromide by high-performance liquid chromatography30.903
Clinical Applications of Gas Chromatograph/Mass Spectrometer/Computer Systems30.903
Single solid phase extraction method for the simultaneous analysis of polar and non-polar pesticides in urine samples by gas chromatography and ultra high pressure liquid chromatography coupled to tandem mass spectrometry.30.903
Solid-phase microextraction-gas chromatography-mass spectrometry method validation for the determination of endogenous substances: urinary hexanal and heptanal as lung tumor biomarkers30.903
A low thermal mass fast gas chromatograph and its implementation in fast gas chromatography mass spectrometry with supersonic molecular beams30.903
Stir bar sorptive extraction coupled to liquid chromatography-tandem mass spectrometry for the determination of pesticides in water samples: method validation and measurement uncertainty30.903
Assessment of organochlorine pesticide residues in Indian flue-cured tobacco with gas chromatography-single quadrupole mass spectrometer30.903
Use of ammonium formate in QuEChERS for high-throughput analysis of pesticides in food by fast, low-pressure gas chromatography and liquid chromatography tandem mass spectrometry30.903
Determination of serum cholesterol by isotope dilution mass spectrometry with a benchtop capillary gas chromatograph/mass spectrometer: comparison with the National Reference System's Definitive and Reference Methods30.903
Fatal poisoning with detajmium: identification of detajmium and its metabolites and artifacts by gas chromatography-mass spectrometry and quantification by high-performance liquid chromatography30.903
Quantitative method validation for the analysis of 27 antidepressants and metabolites in plasma with ultraperformance liquid chromatography-tandem mass spectrometry.30.903
Quantification and semiquantification of multiple representative components for the holistic quality control of Allii Macrostemonis Bulbus by ultra high performance liquid chromatography with quadrupole time‐of‐flight tandem mass spectrometry30.903
Quantitative analysis of maytansinoid (DM1) in human serum by on-line solid phase extraction coupled with liquid chromatography tandem mass spectrometry - Method validation and its application to clinical samples30.903
A simple dual online ultra-high pressure liquid chromatography system (sDO-UHPLC) for high throughput proteome analysis30.903
Critical role of a pre‐purge setup in the thermal desorption analysis of volatile organic compounds by gas chromatography with mass spectrometry30.903
Simultaneous determination of three organic fluorides in workplace air by portable gas chromatography-mass spectrometer30.903
Study of sample preparation for quantitative analysis of amino acids in human sweat by liquid chromatography-tandem mass spectrometry.30.903
Generation of sub-ppb level vapor phase mixtures of biogenic volatile organic compounds from liquid phase standards and stepwise characterization of their volatilization properties by thermal desorption-gas chromatography-mass spectrometry30.903
Analysis of Nitrosamines in Cooked Bacon by QuEChERS Sample Preparation and Gas Chromatography–Tandem Mass Spectrometry with Backflushing30.903
Pesticide residues in chicken eggs – A sample preparation methodology for analysis by gas and liquid chromatography/tandem mass spectrometry30.903
Simultaneous solid phase extraction coupled with liquid chromatography tandem mass spectrometry and gas chromatography tandem mass spectrometry for the highly sensitive determination of 15 endocrine disrupting chemicals in seafood30.903
Identification and Quantitation of Volatile Organic Compounds in Poly(methyl methacrylate) Kitchen Utensils by Headspace Gas Chromatography/Mass Spectrometry30.903
Microextraction with polyethersulfone for bisphenol-A, alkylphenols and hormones determination in water samples by means of gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry analysis30.903
Microflow Liquid Chromatography Coupled to Mass Spectrometry—An Approach to Significantly Increase Sensitivity, Decrease Matrix Effects, and Reduce Organic Solvent Usage in Pesticide Residue Analysis30.903
The off-line combination of high performance liquid chromatography and comprehensive two-dimensional gas chromatography-mass spectrometry: a powerful approach for highly detailed essential oil analysis.30.903
Pesticide residue analysis in human tissue by combined gas chromatography--mass spectrometry30.903
Black tea volatiles fingerprinting by comprehensive two-dimensional gas chromatography - Mass spectrometry combined with high concentration capacity sample preparation techniques: Toward a fully automated sensomic assessment30.903
On-line sample preparation using restricted-access media in the analysis of the soy isoflavones, genistein and daidzein, in rat serum using liquid chromatography electrospray mass spectrometry30.903
Identification and quantitation of sulfamethazine metabolites by liquid chromatography and gas chromatography-mass spectrometry30.903
High throughput liquid chromatography-mass spectrometry assessment of the metabolic activity of commercially available hepatocytes from 96-well plates30.903
Detection and confirmation of milk adulteration with cheese whey using proteomic-like sample preparation and liquid chromatography-electrospray-tandem mass spectrometry analysis.30.903
Identification and measurement of 4-oestren-3,17-dione (19-norandrostenedione) in porcine ovarian follicular fluid using high performance liquid chromatography and capillary gas chromatography-mass spectrometry30.903
Analysis of volatile organic compounds in human saliva by a static sorptive extraction method and gas chromatography-mass spectrometry30.903
A simple sample preparation approach based on hydrophilic solid-phase extraction coupled with liquid chromatography-tandem mass spectrometry for determination of endogenous cytokinins30.903
High-efficiency headspace sampling of volatile organic compounds in explosives using capillary microextraction of volatiles (CMV) coupled to gas chromatography–mass spectrometry (GC-MS)30.903
Determination of stilbenes and resorcylic acid lactones in bovine, porcine and poultry muscle tissue by liquid chromatography–negative ion electrospray mass spectrometry and QuEChERS for sample preparation30.903
Rapid Screening of Volatile Organic Compounds from Aframomum danielli Seeds Using Headspace Solid Phase Microextraction Coupled to Gas Chromatography Mass Spectrometry.30.903
Conversion of tibolone to 7alpha-methyl-ethinyl estradiol using gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry: interpretation and clinical implications30.903
Multiresidue Method for Quantification of Sulfonamides and Trimethoprim in Tilapia Fillet by Liquid Chromatography Coupled to Quadrupole Time-of-Flight Mass Spectrometry Using QuEChERS for Sample Preparation.30.903
Sample preparation and liquid chromatography mass spectrometry analysis of alkylphenolic compounds and steroid sex hormones in sediments30.903
Headspace solid-phase microextraction with gas chromatography and mass spectrometry in the investigation of volatile organic compounds in an ectomycorrhizae synthesis system30.903
Reversed-phase gradient high-performance liquid chromatography of nitramine munitions and characterization of munitions process samples by gas chromatography-mass spectrometry30.903
Procedures for large-scale metabolic profiling of serum and plasma using gas chromatography and liquid chromatography coupled to mass spectrometry30.903
Determination of 24 personal care products in fish bile using hybrid solvent precipitation and dispersive solid phase extraction cleanup with ultrahigh performance liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometr30.903
Analysis of Triacylglycerols in Castor Oil Through Liquid Chromatography-Mass Spectrometry Based on Fourier Transform-Ion Cyclotron Resonance-Mass Spectrometry and Gas Chromatography-Mass Spectrometry30.903
A stable method for routine analysis of oxylipins from dried blood spots using ultra-high performance liquid chromatography-tandem mass spectrometry30.903
Modern Sample Preparation Techniques for Gas Chromatography-Mass Spectrometry Analysis of Environmental Markers of Chemical Warfare Agents Use30.903
A multiresidue method for the determination of 107 pesticides in cabbage and radish using QuEChERS sample preparation method and gas chromatography mass spectrometry30.903
A multiresidue method for the determination of 109 pesticides in rice using the Quick Easy Cheap Effective Rugged and Safe (QuEChERS) sample preparation method and gas chromatography/mass spectrometry with temperature control and vacuum concentration30.903
Multicomponent analysis of volatile organic compounds in water by automated purge and trap coupled to gas chromatography–mass spectrometry30.903
Comparative studies of the leachate of an industrial landfill by gas chromatography–mass spectrometry, liquid chromatography–nuclear magnetic resonance and liquid chromatography–mass spectrometry30.903
Automated sample preparation with extraction columns followed by liquid chromatography-ionspray mass spectrometry interferences, determination and degradation of polar organophosphorus pesticides in water samples30.903
Method validation for simultaneous determination of atropine, pralidoxime and 12 organophosphorus compounds in blood samples by means of high-performance liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS)30.903
A critical evaluation of the use of gas chromatography- and high performance liquid chromatography-mass spectrometry techniques for the analysis of microbial metabolites in human urine after consumption of orange juice30.903
A liquid chromatography–electrospray ionization-mass spectrometry method for quantification of cyclotides in plants avoiding sorption during sample preparation30.903
Simultaneous analysis of several synthetic cannabinoids, THC, CBD and CBN, in hair by ultra-high performance liquid chromatography tandem mass spectrometry. Method validation and application to real samples30.903
An improved, automated whole air sampler and gas chromatography mass spectrometry analysis system for volatile organic compounds in the atmosphere30.903
Development of an In Situ Thermal Desorption Gas Chromatography Instrument for Quantifying Atmospheric Semi-Volatile Organic Compounds30.903
Field measurements of biogenic volatile organic compounds in the atmosphere by dynamic solid-phase microextraction and portable gas chromatography-mass spectrometry30.903
SAMPLE PREPARATION TECHNIQUES FOR THE ANALYSIS OF MATERIALS FROM CONSERVATION LABORATORIES BY SPECTROSCOPIC METHODS: INFRARED, ULTRAVIOLET, VISIBLE, ATOMIC ABSORPTION SPECTROSCOPIES, AND GAS CHROMATOGRAPHY30.903
Analysis of Volatile Organic Compounds fromDendranthema indicumvar.aromaticumby Headspace Gas Chromatography-Mass Spectrometry and Accurate Mass Measurement30.903
Validation, Uncertainty, and Quality Control of Qualitative Analysis of Tear Gas Weapons by Gas Chromatography-Mass Spectrometry30.903
A Comparison Of Measurement of Homovanillic Acid in Brain Tissue by Gas Chromatography Mass Spectrometry and Liquid Chromatography with Electrochemical Detection30.903
Preliminary Characterization of the Composition and Phenolic Fragmentation of Olive Byproducts by Gas Chromatography–Mass Spectrometry and High-Performance Liquid Chromatography–Tandem Mass Spectrometry30.903
Determination of aflatoxins in hazelnuts by various sample preparation methods and liquid chromatography–tandem mass spectrometry30.903
Evaluation of gas chromatography coupled with low pressure plasma source mass spectrometry for the screening of volatile organic compounds in food30.903
Analysis of Thermally Produced Compounds in Foods by Thermospray Liquid Chromatography-Mass Spectrometry and Gas Chromatography-Mass Spectrometry30.903
Improved sample preparation and quality control for the characterisation of titanium dioxide nanoparticles in sunscreens using flow field flow fractionation on-line with inductively coupled plasma mass spectrometry30.903
Development of a Combined Heart-Cut and Comprehensive Two-Dimensional Gas Chromatography System to Extend the Carbon Range of Volatile Organic Compounds Analysis in a Single Instrument30.903
Lab-simulated downhole leaching of formaldehyde from proppants by high performance liquid chromatography (HPLC), headspace gas chromatography-vacuum ultraviolet (HS-GC-VUV) spectroscopy, and headspace gas chromatography-mass spectrometry (HS-GC-MS)30.903
Determination of Chlorpromazine, Haloperidol, Levomepromazine, Olanzapine, Risperidone, and Sulpiride in Human Plasma by Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)30.903
Investigation of pharmaceuticals and illicit drugs in waters by liquid chromatography-high-resolution mass spectrometry30.903
Optimization of sample preparation for sensitive determination of DDT metabolites in food by gas chromatography – mass spectrometry30.903
Determination of trimethylselenonium iodide, selenomethionine, selenious acid, and selenic acid using high-performance liquid chromatography with on-line detection by inductively coupled plasma mass spectrometry or flame atomic absorption spectrometr30.903
Minor Volatile Compounds in White Wines from Canary Islands, Madeira, and Pico (Azores) by Headspace Solid-Phase Microextraction-Gas Chromatography-Mass Spectrometry: A Qualitative Study30.903
Characterization of Arsenic Biotransformation Products from an Open Anaerobic Degradation of Fucus distichus by Hydride Generation Gas Chromatography Atomic Absorption Spectrometry and High Performance Liquid Chromatography Inductively Coupled Plasma30.903
Quantitative Analysis and Fingerprint Profiles for Quality Control of Fructus Schisandrae by Gas Chromatography: Mass Spectrometry30.903
Solid-phase micro-extraction–gas chromatography–(tandem) mass spectrometry as a tool for pesticide residue analysis in water samples at high sensitivity and selectivity with confirmation capabilities30.903
Headspace-solid phase microextraction coupled to gas chromatography–combustion-isotope ratio mass spectrometer and to enantioselective gas chromatography for strawberry flavoured food quality control30.903
Determination of selected non-steroidal anti-inflammatory drugs in wastewater by gas chromatography-mass spectrometry30.903
Analysis of semi-volatile organic compounds in indoor suspended particulate matter by thermal desorption coupled with gas chromatography/mass spectrometry30.903
Chemical Profile and Biological Activities of Two Edible Plants: Chemical Investigation and Quantitative Analysis Using Liquid Chromatography Tandem Mass Spectrometry and Gas Chromatography Mass Spectrometry30.903
Fatty Acids Analysis Using Gas Chromatography-Mass Spectrometer Detector (GC/MSD) - Method Validation Based on Berry Seed Extract Samples30.903
Comparison of sample preparation approaches for phospholipids profiling in human serum by liquid chromatography–tandem mass spectrometry30.903
Study of sample preparation for metabolomic profiling of human saliva by liquid chromatography–time of flight/mass spectrometry30.903
Thermospray liquid chromatography—mass spectrometry with a quadrupole ion trap mass spectrometer30.903
Characterization of the designer drug bk-2C-B (2-amino-1-(bromo-dimethoxyphenyl)ethan-1-one) by gas chromatography/mass spectrometry without and with derivatization with 2,2,2-trichloroethyl chloroformate, liquid chromatography/high-resolution mass s30.903
Determination of Nanogram per Liter Concentrations of Volatile Organic Compounds in Water by Capillary Gas Chromatography and Selected Ion Monitoring Mass Spectrometry and Its Use To Define Groundwater Flow Directions in Edwards Aquifer, Texas30.903
Determination of heat purgeable and ambient purgeable volatile organic compounds in water by gas chromatography/mass spectrometry30.903
Response surface optimisation applied to a headspace-solid phase microextraction-gas chromatography-mass spectrometry method for the analysis of volatile organic compounds in water matrices30.903
Instrumentation for 7-day continuous cycle monitoring of metals with automated on-line sample preparation, high-performance liquid chromatography, and electrochemical detection30.903
Gas Chromatography–Mass Spectrometry Method for Determination of Biogenic Volatile Organic Compounds Emitted by Plants30.903
High concentration capacity sample preparation techniques to improve the informative potential of two-dimensional comprehensive gas chromatography–mass spectrometry: Application to sensomics30.903
Identification, quantitation and method validation for the analysis of suspected allergens in fragrances by comprehensive two-dimensional gas chromatography coupled with quadrupole mass spectrometry and with flame ionization detection30.903
Evaluation of a Rapid-Scanning Quadrupole Mass Spectrometer in an Apolar × Ionic-Liquid Comprehensive Two-Dimensional Gas Chromatography System30.903
On-line high performance liquid chromatography coupled with high resolution gas chromatography and mass spectrometry (HPLC-HRGC-MS) for the analysis of complex mixtures containing highly volatile compounds30.903
Variability of matrix effects in liquid and gas chromatography–mass spectrometry analysis of pesticide residues after QuEChERS sample preparation of different food crops30.903
Determination of a Wide Range of Volatile Organic Compounds in Ambient Air Using Multisorbent Adsorption/Thermal Desorption and Gas Chromatography/Mass Spectrometry30.903
Direct coupling of a nano-high-performance liquid chromatography column to an ion trap designed for a gas chromatography/mass spectrometry system30.903
Simultaneous Determination of Creatinine and Creatine in Human Serum by Double-Spike Isotope Dilution Liquid Chromatography–Tandem Mass Spectrometry (LC-MS/MS) and Gas Chromatography–Mass Spectrometry (GC-MS)30.903
Atmospheric pressure ionization mass spectrometry. Corona discharge ion source for use in a liquid chromatograph-mass spectrometer-computer analytical system30.903
Evaluation of triclosan and biphenylol in marine sediments and urban wastewaters by pressurized liquid extraction and solid phase extraction followed by gas chromatography mass spectrometry and liquid chromatography mass spectrometry30.903
Solid-phase extraction and high-performance liquid chromatography mass spectrometry analysis of nitrosamines in treated drinking water and wastewater30.903
Analysis of flavonoids in tablets and urine by gas chromatography/mass spectrometry and liquid chromatography/mass spectrometry30.903
Seasonal changes in metabolic profiles of galls and leaves of Rhus chinensis using gas chromatography mass spectrometry and liquid chromatography quadrupole time-of-flight mass spectrometry30.903
13C- and 15N-Isotope Analysis of Desphenylchloridazon by Liquid Chromatography–Isotope-Ratio Mass Spectrometry and Derivatization Gas Chromatography–Isotope-Ratio Mass Spectrometry30.903
Headspace solid-phase microextraction–gas chromatography–mass spectrometry applied to quality control in multilayer-packaging manufacture30.903
Molecular Characterization of Phospholipids by High-Performance Liquid Chromatography Combined with an Evaporative Light Scattering Detector, High-Performance Liquid Chromatography Combined with Mass Spectrometry, and Gas Chromatography Combined with30.903
Determination of volatile organic compounds in industrial wastewater plant air emissions by multi-sorbent adsorption and thermal desorption-gas chromatography-mass spectrometry30.903
Evaluation of comprehensive on-line liquid chromatography thermally assisted hydrolysis and methylation-gas chromatography-mass spectrometry for characterization of sulfonated lignins30.903
Graphene Oxide Tablets for Sample Preparation of Drugs in Biological Fluids: Determination of Omeprazole in Human Saliva for Liquid Chromatography Tandem Mass Spectrometry30.903
Detection of Volatile Organic Compounds (VOCs) in Urine via Gas Chromatography-Mass Spectrometry QTOF to Differentiate Between Localized and Metastatic Models of Breast Cancer30.903
Determination of volatile organic compounds in drinking water by purge and trap gas chromatography/mass spectrometry30.903
Quantification of 31 volatile organic compounds in whole blood using solid-phase microextraction and gas chromatography-mass spectrometry30.903
Importance of enhanced mass resolution in removing interferences when measuring volatile organic compounds in human blood by using purge-and-trap gas chromatography/mass spectrometry30.903
Assessment of cotinine in urine and saliva of smokers, passive smokers, and nonsmokers: Method validation using liquid chromatography and mass spectrometry30.903
Determination of microbial volatile organic compounds from Staphylococcus pasteuri against Tuber borchii using solid-phase microextraction and gas chromatography/ion trap mass spectrometry30.903
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of 86 volatile organic compounds in water by gas chromatography/mass spectrometry, including detections less than reporting limits30.903
Application of high performance liquid chromatography and gas chromatography—Mass spectrometry to analysis of prostaglandin E1 in biological media30.903
Steroids and hypertension. 1--Gas-liquid chromatography and gas chromatography mass spectrometry of 3,15- and 3, 16-dihydroxy-17-oxosteroids30.903
Determination of therapeutic and toxic concentrations of doxepin and loxapine using gas—liquid chromatography with a nitrogen-sensitive detector, and gas chromatography—mass spectrometry of loxapine30.903
Simultaneous microdetermination of capsaicin and its four analogues by using high-performance liquid chromatography and gas chromatography—mass spectrometry30.903
Liquid chromatography and gas chromatography/mass spectrometry of lipoxygenase and cyclooxygenase products from platelets and endothelial cells30.903
Determination of Residual Methamidophos in Various Food by Solid Phase Extraction with Gas Chromatography,Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry and its Effect Mechanism Study30.903
Analysis of Volatile Organic Compounds in Printing and Plastic Packaging Materials of Instant Noodles by Headspace Gas Chromatography-Mass Spectrometry30.903
Investigation of Potential Markers for Quality Control of Corn Steep Liquor in Penicillin Fermentation by Gas Chromatography-Mass Spectrometry30.903
High Throughput Screening of Tranquilizers in Dairy Products Using Ultra Performance Liquid Chromatography Coupled to High Resolution Time-of-Flight Mass Spectrometry30.903
Simultaneous Determination of 11 Volatile Organic Compounds Metabolites in Human Urine Using High Performance Liquid Chromatography Coupled with Electrospray Ionization Tandem Mass Spectrometry30.903
Online Liquid Chromatography-Gas Chromatography-Mass Spectrometry for Highly Sensitive Determination of 4-( Methylnitrosamino)-1-( 3-pyridyl)-1-butanone in Mainstream Cigarette Smoke30.903
Determination of 18 Brominated Flame Retardants in Dairy Product by Gel Permeation Chromatography-Solid Phase Extraction Coupled to Gas Chromatography-Mass Spectrometry and High Performance Liquid Chromatography-Tandem Mass Spectrometry30.903
High Throughput Screening of 86 Kinds of Glucocorticoids in Cosmetics Using QuEChERS and Isotope Dilution-Liquid Chromatography Copuled to High Resolution Time-of-Flight Mass Spectrometry30.903
Drug analysis by continuously monitored liquid chromatography/mass spectrometry with a quadrupole mass spectrometer30.903
Determination of an antipsychotic agent (ICI 204,636) and its 7-hydroxy metabolite in human plasma by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Determination of nalbuphine using high-performance liquid chromatography coupled to photodiode-array detection and gas chromatography coupled to mass spectrometry30.903
Determination of 15-keto-13,14-dihydro-metabolites of PGE2 and PGF2α in plasma using high performance liquid chromatography and gas chromatography-mass spectrometry30.903
Analysis of benzoylecgonine in urine by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Simultaneous analysis of flunixin, naproxen, ethacrynic acid, indomethacin, phenylbutazone, mefenamic acid and thiosalicylic acid in plasma and urine by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Identification of aromatic moieties and mycosamine in antifungal heptaenes with high-performance liquid chromatography, high-performance liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry30.903
Identification of a benzhydrolic metabolite of ketoprofen in horses by gas chromatography-mass spectrometry and high-performance liquid chromatography30.903
Determination and identification of amiloride in human urine by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Detection of oxilofrine in plasma and urine by high-performance liquid chromatography with electrochemical detection and comparison with gas chromatography-mass spectrometry30.903
Complex mixture analysis based on gas chromatography-mass spectrometry with time array detection using a beam deflection time-of-flight mass spectrometer30.903
Solid-phase extraction techniques for the determination of glycopyrrolate from equine urine by liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry30.903
Analysis of sterol esters from alga and yeast by high-performance liquid chromatography and capillary gas chromatography-mass spectrometry with chemical ionization30.903
Assessment of the biotransformation of the cardiotonic agent piroximone by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Preparative separation of sphingolipids and of individual molecular species by high-performance liquid chromatography and their identification by gas chromatography-mass spectrometry30.903
Determination of dexamethasone in bovine tissues by coupled-column normal-phase high-performance liquid chromatography and capillary gas chromatography-mass spectrometry30.903
Characterization of polar substituted polycyclic aromatic compounds using high-resolution gas chromatography/mass spectrometry negative ion chemical ionization and positive and negative ion thermospray liquid chromatography/mass spectrometry30.903
Automated sample preparation on-line with thermospray high-performance liquid chromatography-mass spectrometry for the determination of drugs in plasma30.903
Determination of (+)- and (-)-nilvadipine in human plasma using chiral stationary-phase liquid chromatography and gas chromatography-mass spectrometry, and a preliminary pharmacokinetic study in humans30.903
Advances in the use of computerized gas chromatography-mass spectrometry and high-performance liquid chromatography with rapid scanning detection for clinical diagnosis30.903
Analysis of benzbromarone in human plasma and urine by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Analysis of beechwood creosote by gas chromatography-mass spectrometry and high-performance liquid chromatography30.903
Coupled high-performance liquid chromatography-capillary gas chromatography as a replacement for gas chromatography-mass spectrometry in the determination of diethylstilbestrol in bovine urine30.903
Determination of the lipid peroxidation product trans-4-hydroxy-2-nonenal in biological samples by high-performance liquid chromatography and combined capillary column gas chromatography-negative-ion chemical ionisation mass spectrometry30.903
Determination of benzarone in human plasma and urine by high-performance liquid chromatography and gas chromatography-mass spectrometry. Identification of the conjugates30.903
Ester and related derivatives of ring N-pentafluorobenzylated 5-hydroxymethyluracil. Hydrolytic stability, mass spectral properties, and trace detection by gas chromatography-electron-capture detection, gas chromatography-electron-capture negative i30.903
Stereoselective analysis of the enantiomers of ethotoin in human serum using chiral stationary phase liquid chromatography and gas chromatography-mass spectrometry30.903
Determination of zeranol/zearalenone and their metabolites in edible animal tissue by liquid chromatography with electrochemical detection and confirmation by gas chromatography/mass spectrometry30.903
Confirmation of nivalenol and deoxynivalenol by on-line liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry. Comparison of methods30.903
Identification of phenprocoumon metabolites in human urine by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Multiresidue assay for benzimidazole anthelmintics by liquid chromatography and confirmation by gas chromatography/selected-ion monitoring electron impact mass spectrometry30.903
Use of high-performance liquid chromatography-thermospray mass spectrometry and gas chromatography-electron-impact mass spectrometry in the identification of the metabolites of alpha-methylacetohydroxamic acids, potential anti-asthmatic agents30.903
Characterization of uremic "middle molecular" fractions by gas chromatography, mass spectrometry, isotachophoresis, and liquid chromatography30.903
Gas and liquid chromatography of hydroxybiphenyls, chlorinated hydroxybiphenyls and several types of halogenated derivatives. I. Capillary gas chromatography and mass spectrometry30.903
Sample purification using a C18-bonded reversed-phase cartridge for the quantitative analysis of corticosteroids in adrenal cell cultures by high-performance liquid chromatography or gas chromatography--mass spectrometry30.903
Structural analysis of complex carbohydrates using high-performance liquid chromatography, gas chromatography, and mass spectrometry30.903
Simultaneous determination of blood concentrations of methohexital and its hydroxy metabolite by gas chromatography and identification of 4'-hydroxymethohexital by combined gas--liquid chromatography--mass spectrometry30.903
Gas chromatography, gas chromatography--mass spectrometry, and high-pressure liquid chromatography of carotenoids and retinoids30.903
Identification of a metabolite of propafenone in human urine by means of high-performance liquid chromatography and gas chromatography--mass spectrometry30.903
Comparison of high-performance liquid chromatography and gas chromatography-mass spectrometry for the analysis of indole-3-acetic acid in brain tissue30.903
Determination of phenylbutazone and oxyphenbutazone in plasma and urine samples of horses by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Comparison of liquid chromatography-electrochemical and gas chromatography-mass spectrometry methods for brain dopamine and serotonin30.903
Sample preparation and gas chromatography--mass spectrometry determination of 2,3,7,8-tetrachlorodibenzo-p-dioxin30.903
Determination of volatile organic compounds in fish samples by vacuum distillation and fused silica capillary gas chromatography/mass spectrometry30.903
Diagnosis of ethylene glycol (antifreeze) intoxication in dogs by determination of glycolic acid in serum and urine with high pressure liquid chromatography and gas chromatography-mass spectrometry30.903
Evaluation of sodium 4-hydroxybenzoate as an hydroxyl radical trap using gas chromatography-mass spectrometry and high-performance liquid chromatography with electrochemical detection30.903
High-performance liquid chromatography and gas chromatography-mass spectrometry determination of specific lipid peroxidation products in vivo30.903
Determination of 3,4-dihydroxyphenyl glycol in plasma by gas chromatography-mass spectrometry and high-performance liquid chromatography methods30.903
Determination of flunixin in milk by liquid chromatography with confirmation by gas chromatography/mass spectrometry and selected ion monitoring30.903
The Analysis of Furanocoumarins by the Combination Instrument Gas Chromatograph and Mass Spectrometer30.903
Analytical procedures and quality assurance criteria for the determination of major and minor deoxynucleosides in fish tissue DNA by liquid chromatography—ultraviolet spectroscopy and liquid chromatography—thermospray mass spectrometry30.903
High-performance liquid chromatography of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 in human plasma. Use of isotachysterols and a comparison with gas chromatography--mass spectrometry30.903
Investigation of mammalian lignan precursors in flax seed: First evidence of secoisolariciresinol diglucoside in two isomeric forms by liquid chromatography/mass spectrometry30.903
Determination of sertraline and desmethylsertraline in human serum using copolymeric bonded-phase extraction, liquid chromatography and gas chromatography-mass spectrometry30.903
Enantioselective assay for the determination of nisoldipine in dog, rat and mouse plasma by chiral microbore high-performance liquid chromatography combined with gas chromatography-mass spectrometry30.903
Midazolam determination by gas chromatography, liquid chromatography and gas chromatography—mass spectrometry30.903
Identification of metoclopramide metabolites in the urine of cattle by gas chromatography-mass spectrometry and high-performance liquid chromatography-photodiode array detection30.903
Quantitative metabolic fate of propranolol in the dog, rat, and hamster using radiotracer, high performance liquid chromatography, and gas chromatography-mass spectrometry techniques30.903
Determination of the enantiomers of bunolol in human urine by high-performance liquid chromatography on a chiral AGP stationary phase and identification of their metabolites by gas chromatography-mass spectrometry30.903
Identification and determination of the enantiomers of moprolol and their metabolites in human urine by high-performance liquid chromatography and gas chromatography-mass spectrometry30.903
Automated sample preparation by on-line dialysis and trace enrichment. Analysis of morphine, 6-monoacetylmorphine, codeine, ethylmorphine and pholcodine in plasma and whole blood by capillary gas chromatography and capillary gas chromatography-mass30.903
Detection of paraquat-induced in vivo lipid peroxidation by gas chromatography/mass spectrometry and high-pressure liquid chromatography30.903
A simple method for the extraction of volatile organic compounds contained in air samples from adsorbent materials by solid phase microextraction and their analysis by gas chromatography/mass spectrometry30.903
Comparison of turbulent-flow chromatography with automated solid-phase extraction in 96-well plates and liquid-liquid extraction used as plasma sample preparation techniques for liquid chromatography-tandem mass spectrometry30.903
Method for quantification of morphine and its 3- and 6- glucuronides, codeine, codeine glucuronide and 6-monoacetylmorphine in human blood by liquid chromatography-electrospray mass spectrometry for routine analysis in forensic toxicology30.903
Preliminary comparison of precursor scans and liquid chromatography-tandem mass spectrometry on a hybrid quadrupole time-of-flight mass spectrometer30.903
Identification of 2,3-butanedione monoxime hydrogenation products by gas chromatography-mass spectrometry in an ion trap mass spectrometer30.903
Characterization of oligonucleotide metabolism in vivo via liquid chromatography/electrospray tandem mass spectrometry with a quadrupole ion trap mass spectrometer30.903
Liquid chromatography "on-flow" 1H nuclear magnetic resonance on native glycosphingolipid mixtures together with gas chromatography/mass spectrometry on the released oligosaccharides for screening and characterisation of carbohydrate-based antigens30.903
Determination of S-1 (combined drug of tegafur, 5-chloro-2,4-dihydroxypyridine and potassium oxonate) and 5-fluorouracil in human plasma and urine using high-performance liquid chromatography and gas chromatography-negative ion chemical ionization m30.903
Analysis of Airborne Volatile Organic Compounds of a Steel Industry by Solid Phase Microextraction and Gas Chromatography/Mass Spectrometry30.903
Chromatographic aspects in high throughput liquid chromatography/mass spectrometry30.903
Analysis of a commercial preparation of erythromycin estolates by tandem mass spectrometry and high performance liquid chromatography/electrospray ionization tandem mass spectrometry using an ion trap mass spectrometer30.903
Novel sample preparation method facilitating identification of urinary drug metabolites by liquid chromatography-tandem mass spectrometry30.903
Evaluation of ursodeoxycholic acid bioavailability from immediate- and sustained-release preparations using gas chromatography-mass spectrometry and high-performance liquid chromatography30.903
Detection of Bromisovalum from the Bone Marrow of Skeletonized Human Remains: A Case Report with a Comparison between Gas Chromatography/Mass Spectrometry (GC/MS) and High-Performance Liquid Chromatography/Mass Spectrometry (LC/MS)30.903
Determination of the Metabolites of the Herbicide Dimethyl Tetrachloroterephthalate in Drinking Water by High-Performance Liquid Chromatography with Gas Chromatography/Mass Spectrometry Confirmation30.903
Liquid chromatography/tandem mass spectrometry methods for quantitation of mevalonic acid in human plasma and urine: method validation, demonstration of using a surrogate analyte, and demonstration of unacceptable matrix effect in spite of use of a30.903
Identification of YH439 and its metabolites in rat urine by gas chromatography–mass spectrometry and liquid chromatography–mass spectrometry30.903
Analysis of tetramethylpyrazine in Ephedrae herba by gas chromatography-mass spectrometry and high-performance liquid chromatography30.903
Sample preparation for high throughput accurate mass analysis by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry30.903
Development of a capillary high-performance liquid chromatography tandem mass spectrometry system using SWIFT technology in an ion trap/reflectron time-of-flight mass spectrometer30.903
Liquid chromatography/electrospray tandem mass spectrometry method for the quantitation of fosinoprilat in human serum using automated 96-well solid-phase extraction for sample preparation30.903
Gas chromatography/negative ion chemical ionization mass spectrometry and liquid chromatography/electrospray ionization tandem mass spectrometry quantitative profiling of N-acetylcysteine conjugates of valproic acid in urine: application in drug met30.903
Use of high-performance liquid chromatography as an extraction procedure for analysis of triazolam in decomposed human muscle by gas chromatography-mass spectrometry30.903
Multiresidue method for the determination of residues of 251 pesticides in fruits and vegetables by gas chromatography/mass spectrometry and liquid chromatography with fluorescence detection30.903
Determination and excretion study of gestrinone in human urine by high performance liquid chromatography and gas chromatography/mass spectrometry30.903
The Optimized Use of Gas Chromatography-Mass Spectrometry and High Performance Liquid Chromatography to Analyse the Serum Bile Acids of Patients with Metabolic Cholestasis and Peroxisomal Disorders30.903
Determination of the metabolites of gestrinone in human urine by high performance liquid chromatography, liquid chromatography/mass spectrometry and gas chromatography/mass spectrometry30.903
Liquid-phase microextraction combined with hollow fiber as a sample preparation technique prior to gas chromatography/mass spectrometry30.903
High-performance liquid chromatography tandem mass spectrometry procedure with automated solid phase extraction sample preparation for the quantitative determination of paclitaxel (Taxol) in human plasma30.903
Determination of an ultrashort-acting antihypertensive dihydropyridine, clevidipine, in blood using capillary gas chromatography-mass spectrometry and of the primary metabolite using liquid chromatography and fluorescence detection30.903
Determination of residues of UV filters in natural waters by solid-phase extraction coupled to liquid chromatography-photodiode array detection and gas chromatography-mass spectrometry30.903
Screening of chlorpropamide in horse plasma by high-performance liquid chromatography with ultraviolet absorbance detection, and confirmation by gas chromatography–mass spectrometry30.903
Determination of albumin adducts of (+)-anti-benzo[a]pyrene-diol-epoxide using an high-performance liquid chromatographic column switching technique for sample preparation and gas chromatography–mass spectrometry for the final detection30.903
Description and validation of a staggered parallel high performance liquid chromatography system for good laboratory practice level quantitative analysis by liquid chromatography/tandem mass spectrometry30.903
Measurement of nitrite and nitrate in plasma, serum and urine of humans by high-performance liquid chromatography, the Griess assay, chemiluminescence and gas chromatography-mass spectrometry: interferences by biogenic amines and N(G)-nitro-L-argini30.903
Determination of bitertanol residues in strawberries by liquid chromatography with fluorescence detection and confirmation by gas chromatography/mass spectrometry30.903
Screening of sulphonamides in egg using gas chromatography-mass-selective detection and liquid chromatography-mass spectrometry30.903
[Gas chromatographic and gas chromatography-mass spectrometric analyses of aromatic hydrocarbons in oils and rock extracts simultaneously by using bench-top gas chromatograph-mass spectrometer]30.903
Relaxed eddy accumulation, a new technique for measuring emission and deposition fluxes of volatile organic compounds by capillary gas chromatography and mass spectrometry30.903
Sample preparation techniques for the determination of natural15N/14N variations in amino acids by gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS)30.903
[A method for determination of volatile organic compounds in drinking water by purge and trap in combination with gas chromatograph/mass spectrometry]30.903
Gas chromatography/mass spectrometry versus liquid chromatography/fluorescence detection in the analysis of phenols in mainstream cigarette smoke30.903
Isoprostane measurement in plasma and urine by liquid chromatography-mass spectrometry with one-step sample preparation30.903
Method validation for the analysis of 169 pesticides in soya grain, without clean up, by liquid chromatography-tandem mass spectrometry using positive and negative electrospray ionization30.903
Validation study on 660 pesticide residues in animal tissues by gel permeation chromatography cleanup/gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry30.903
Determination of residues of 446 pesticides in fruits and vegetables by three-cartridge solid-phase extraction-gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry30.903
Method validation for determination of the 15 European-priority polycyclic aromatic hydrocarbons in primary smoke condensates by gas chromatography/mass spectrometry: interlaboratory study30.903
Multi-residue method for the determination of 450 pesticide residues in honey, fruit juice and wine by double-cartridge solid-phase extraction/gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry30.903
A high throughput and sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the estimation of bisoprolol in human plasma using multiplexing technique30.903
Combined liquid chromatography-tandem mass spectrometry as an analytical method for high throughput screening for X-linked adrenoleukodystrophy and other peroxisomal disorders: preliminary findings30.903
Comparison of sample preparation methods combined with fast gas chromatography-mass spectrometry for ultratrace analysis of pesticide residues in baby food30.903
Metabolism, pharmacokinetics, and excretion of the substance P receptor antagonist CP-122,721 in humans: structural characterization of the novel major circulating metabolite 5-trifluoromethoxy salicylic acid by high-performance liquid chromatograph30.903
Determination of butylated hydroxytoluene in food samples by high-performance liquid chromatography with ultraviolet detection and gas chromatography/mass spectrometry30.903
High throughput quantification of phytoestrogens in human urine and serum using liquid chromatography/tandem mass spectrometry (LC-MS/MS)30.903
Collaborative trial validation study of two methods, one based on high performance liquid chromatography-tandem mass spectrometry and on gas chromatography-mass spectrometry for the determination of acrylamide in bakery and potato products30.903
Improved quality control in gas chromatography interfaced to stable isotope ratio mass spectrometry by application of derivative chromatography30.903
Overview of methods for the determination of trans fatty acids by gas chromatography, silver-ion thin-layer chromatography, silver-ion liquid chromatography, and gas chromatography/mass spectrometry30.903
Non-linear and non-constant variance calibration curves in analysis of volatile organic compounds for testing of water by the purge-and-trap method coupled with gas chromatography/mass spectrometry30.903
Development of on-line sample preparation coupled with liquid chromatography-mass spectrometry for analysis of small molecules in biofluids30.903
Determination of oxygenated volatile organic compounds in ambient air using canister collection-gas chromatography/mass spectrometry30.903
Development of a simple and reliable accurate mass liquid chromatography/electrospray ionization mass spectrometry method for high-resolution accurate mass determinations of new drug entities on a triple quadrupole mass spectrometer30.903
A study of the analytical behaviour of selected synthetic and naturally occurring quinolines using electrospray ionisation ion trap mass spectrometry, liquid chromatography and gas chromatography and the construction of an appropriate database for q30.903
Application of high-performance liquid chromatography-electrospray ionization time-of-flight mass spectrometry for analysis and quality control of Radix Astragali and its preparations30.903
Analysis of semi-volatile organic compounds in chemical waste by gas chromatography/mass spectrometry30.903
Determination of fumonisins B1 and B2 in corn by liquid chromatography/mass spectrometry with immunoaffinity column cleanup: single-laboratory method validation30.903
Sample preparation for liquid chromatography-tandem mass spectrometry using functionalized ferromagnetic micro-particles30.903
Determination of UV-filter residues in bathing waters by liquid chromatography UV-diode array and gas chromatography-mass spectrometry after micelle mediated extraction-solvent back extraction30.903
Analysis of alkyl and 2-6-ringed polycyclic aromatic hydrocarbons by isotope dilution gas chromatography/mass spectrometry. Quality assurance and determination in Spanish river sediments30.903
A study of the analytical behaviour of selected psycho-active drugs using liquid chromatography, ion trap mass spectrometry, gas chromatography and polarography and the construction of an appropriate database for drug characterisation30.903
Method validation for the simultaneous determination of fecal sterols in surface waters by gas chromatography-mass spectrometry30.903
Sorption study of 25 volatile organic compounds in several Mediterranean soils using headspace-gas chromatography-mass spectrometry30.903
Fast gas chromatography-negative-ion chemical ionization mass spectrometry with microscale volume sample preparation for the determination of benzodiazepines and alpha-hydroxy metabolites, zaleplon and zopiclone in whole blood30.903
Determination and confirmation of chloramphenicol in honey, fish and prawns by liquid chromatography-tandem mass spectrometry with minimum sample preparation: validation according to 2002/657/EC Directive30.903
Determination of 10 volatile organic compounds in toys by headspace gas chromatography-mass spectrometry30.903
Nontarget Screening Methods for the Analysis of Contaminant Residues in Food Matrixes by Gas Chromatography/Mass Spectrometry and Liquid Chromatography/Mass Spectrometry30.903
A fully automated system with on-line micro solid-phase extraction combined with capillary liquid chromatography–tandem mass spectrometry for high throughput analysis of microcystins and nodularin-R in tap water and lake water30.903
Liquid chromatography and tandem mass spectrometry method for the quantitative determination of saxagliptin and its major pharmacologically active 5-monohydroxy metabolite in human plasma: method validation and overcoming specific and non-specific b30.903
Analysis of residues of 81 pesticides on ginkgo leaves using QuEChERS sample preparation and gas chromatography/mass spectrometry30.903
In situ derivatization-liquid liquid extraction as a sample preparation strategy for the determination of urinary biomarker prolyl-4-hydroxyproline by liquid chromatography-tandem mass spectrometry30.903
Simultaneous analysis of Δ(9)-tetrahydrocannabinol and 11-nor-9-carboxy-tetrahydrocannabinol in hair without different sample preparation and derivatization by gas chromatography-tandem mass spectrometry30.903
Determination of three brominated flame retardants in human serum using solid-phase extraction coupled with ultra-performance liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry30.903
Solid phase microextraction with gas chromatography-mass spectrometry: a very rapid method for identification of volatile organic compounds emitted by Carum copticum30.903
Chiral analysis by online coupling of reversed-phase liquid chromatography to gas chromatography and mass spectrometry30.903
Generic sample preparation and dual polarity liquid chromatography—time‐of‐flight mass spectrometry for high‐throughput screening in doping analysis30.903
Formation of new bioactive organic nitrites and their identification with gas chromatography-mass spectrometry and liquid chromatography coupled to nitrite reduction30.903
A novel approach to rapidly explore analytical markers for quality control of Radix Salviae Miltiorrhizae extract granules by robust principal component analysis with ultra-high performance liquid chromatography-ultraviolet-quadrupole time-of-flight30.903
Simple, high throughput ultra-high performance liquid chromatography/tandem mass spectrometry trace analysis of perfluorinated alkylated substances in food of animal origin: milk and fish30.903
Gas chromatography connected to multiple channel electrospray ionization mass spectrometry for the detection of volatile organic compounds30.903
Determination of ortho-phthalaldehyde in water by high performance liquid chromatography and gas chromatography–mass spectrometry after hydrazine derivatization30.903
Rapid recognition of irradiated dry-cured ham by on-line coupling of reversed-phase liquid chromatography with gas chromatography and mass spectrometry30.903
Online comprehensive two-dimensional characterization of puff-by-puff resolved cigarette smoke by hyphenation of fast gas chromatography to single-photon ionization time-of-flight mass spectrometry: quantification of hazardous volatile organic compo30.903
Quantitative analysis of biologically active ingredients of Five Seeds Combo by liquid chromatography-quadrupole time-of-flight mass spectrometry for quality control of commercial herbal product30.903
The use of a simple backflush technology to improve sample throughput and system robustness in routine gas chromatography tandem mass spectrometry analysis of doping control samples30.903
High throughput analysis of 150 pesticides in fruits and vegetables using QuEChERS and low-pressure gas chromatography-time-of-flight mass spectrometry30.903
Pitfalls encountered during quantitative determination of 3-alkyl-2-methoxypyrazines in grape must and wine using gas chromatography-mass spectrometry with stable isotope dilution analysis. Comprehensive two-dimensional gas chromatography-mass spect30.903
Full-range analysis of ambient volatile organic compounds by a new trapping method and gas chromatography/mass spectrometry30.903
Solid-phase microcolumn extraction and gas chromatography-mass spectrometry identification of volatile organic compounds emitted by paper30.903
Determination of benzenic and halogenated volatile organic compounds in animal-derived food products by one-dimensional and comprehensive two-dimensional gas chromatography-mass spectrometry30.903
Analysis of steroids in human urine by on line liquid chromatography-gas chromatography-mass spectrometry using the Through Oven Transfer Adsorption Desorption interface and a fraction collector30.903
Supported liquid extraction offers improved sample preparation for aldosterone analysis by liquid chromatography tandem mass spectrometry30.903
A multiresidue method for the determination of 118 pesticides in vegetable juice by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry30.903
Development of an ultra-high-performance liquid chromatography-tandem mass spectrometry method for high throughput determination of organophosphorus flame retardants in environmental water30.903
Veracity on determination of volatile organic compounds in the air by portable gas chromatography-mass spectrometry30.903
Monitoring the emission of volatile organic compounds from flowers of Jasminum sambac using solid-phase micro-extraction fibers and gas chromatography with mass spectrometry detection30.903
Simplified sample preparation procedure for measuring isotope-enriched methylmercury by gas chromatography and inductively coupled plasma mass spectrometry30.903
Persistent organic chemicals in sewage effluents. 3. Determinations of nonylphenoxy carboxylic acids by high-resolution gas chromatography/mass spectrometry and high-performance liquid chromatography30.903
Analysis of volatile and semi-volatile compounds in tobacco using off-line combination of liquid chromatography and capillary gas chromatography-mass spectrometry30.903
Study of blood collection and sample preparation for analysis of vitamin D and its metabolites by liquid chromatography-tandem mass spectrometry30.903
A comprehensive procedure based on gas chromatography-isotope ratio mass spectrometry following high performance liquid chromatography purification for the analysis of underivatized testosterone and its analogues in human urine30.903
Shotgun analysis of membrane proteomes by an improved SDS-assisted sample preparation method coupled with liquid chromatography–tandem mass spectrometry30.903
A new approach based on off-line coupling of high-performance liquid chromatography with gas chromatography-mass spectrometry to determine acrylamide in coffee brew30.903
Metabolomic profiling of human serum in lung cancer patients using liquid chromatography/hybrid quadrupole time-of-flight mass spectrometry and gas chromatography/mass spectrometry30.903
Analysis of small carbohydrates in several bioactive botanicals by gas chromatography with mass spectrometry and liquid chromatography with tandem mass spectrometry30.903
Phytochemical analyses of Ziziphus jujuba Mill. var. spinosa seed by ultrahigh performance liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry30.903
Simultaneous determination of 18 β -agonist residues in feed using QuEChERS sample preparation and high performance liquid chromatography-tandem mass spectrometry30.903
Development of an analytical method for the determination of the misuse in sports of boldenone through the analysis of urine by on-line coupling liquid chromatography-gas chromatography-combustion-isotope ratio mass spectrometry30.903
Determination of deoxynivalenol and deoxynivalenol-3-glucoside in wheat and barley using liquid chromatography coupled to mass spectrometry: on-line clean-up versus conventional sample preparation techniques30.903
On-Line Combination of High Performance Liquid Chromatography with Comprehensive Two-Dimensional Gas Chromatography-Triple Quadrupole Mass Spectrometry: A Proof of Principle Study30.903
Quantifying fenobucarb residue levels in beef muscles using liquid chromatography-tandem mass spectrometry and QuEChERS sample preparation30.903
Use of ultra-high pressure liquid chromatography coupled to high resolution mass spectrometry for fast screening in high throughput doping control30.903
Simultaneous liquid–liquid extraction and dispersive solid-phase extraction as a sample preparation method to determine acidic contaminants in river water by gas chromatography/mass spectrometry30.903
Evaluation of QuEChERS sample preparation and liquid chromatography-triple-quadrupole mass spectrometry method for the determination of 109 pesticide residues in tomatoes30.903
Simultaneous quantification of acetaminophen and five acetaminophen metabolites in human plasma and urine by high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry: Method validation and application to a neonatal pha30.903
Poly(amic acid) and polyimide characterization using gas chromatography/mass spectrometry and particle beam liquid chromatography/mass spectrometry30.903
Investigation of Galaxolide degradation products generated under oxidative and irradiation processes by liquid chromatography/hybrid quadrupole time-of-flight mass spectrometry and comprehensive two-dimensional gas chromatography/time-of-flight mass30.903
Pharmacokinetic analysis of levo-tetrahydropalmatine in rabbit plasma by rapid sample preparation and liquid chromatography-tandem mass spectrometry30.903
Identification and quantitation of adenosine-3?:5?-cyclic monophosphate in plants using gas chromatography-mass spectrometry and high-performance liquid chromatography30.903
Detection of Stimulants and Narcotics by Liquid Chromatography-Tandem Mass Spectrometry and Gas Chromatography-Mass Spectrometry for Sports Doping Control30.903
Development and validation of multiresidue analytical method in cotton and groundnut oil for 87 pesticides using low temperature and dispersive cleanup on gas chromatography and liquid chromatography-tandem mass spectrometry30.903
A fully automated dual-online multifunctional ultrahigh pressure liquid chromatography system for high-throughput proteomics analysis30.903
Quality control evaluation of nutraceutical products from Ginkgo biloba using liquid chromatography coupled to high resolution mass spectrometry30.903
Simultaneous determination of 4 kinds of 29 banned and restricted veterinary drugs in animal-derived foods by ultra performance liquid chromatography- tandem mass spectrometry and modified QuEChERS for sample preparation30.903
Characterization of gibberellins from dark-grown Phaseolus coccineus seedlings by gas-liquid chromatography and combined gas chromatography-mass spectrometry30.903
A multi-residue method for simultaneous determination of 74 pesticides in Chinese material medica using modified QuEChERS sample preparation procedure and gas chromatography tandem mass spectrometry30.903
Determination of T-2 toxin, HT-2 toxin, and three other type A trichothecenes in layer feed by high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS)--comparison of two sample preparation methods30.903
Differentiating organically and conventionally grown oregano using ultraperformance liquid chromatography mass spectrometry (UPLC-MS), headspace gas chromatography with flame ionization detection (headspace-GC-FID), and flow injection mass spectrum30.903
Fast and high throughput screening ofamantadine in chicken muscle by extractive derivatization with pentafluorobenzoyl chloride and gas chromatography/negative ion chemical ionization-tandem mass spectrometry30.903
Validation of thermodesorption method for analysis of semi-volatile organic compounds adsorbed on wafer surface30.903
Optimization of a sample preparation method for multiresidue analysis of pesticides in tobacco by single and multi-dimensional gas chromatography-mass spectrometry30.903
High throughput analysis of cerebroside molecular species from sea cucumber Parastichopus californicus by liquid chromatography-quadrupole-time-of-flight mass spectrometry30.903
Metabolite profiling of edible bird's nest using gas chromatography/mass spectrometry and liquid chromatography/mass spectrometry30.903
[Determination of volatile organic compounds in ambient air by thermal desorption-gas chromatography-triple quadrupole tandem mass spectrometry]30.903
Single-Laboratory Validation of a Method for the Determination of Select Volatile Organic Compounds in Foods by Using Vacuum Distillation with Gas Chromatography/Mass Spectrometry30.903
Sample preparation workflow for the liquid chromatography tandem mass spectrometry based analysis of nicotinamide adenine dinucleotide phosphate cofactors in yeast30.903
Evaluation of the stability of a mixture of volatile organic compounds on sorbents for the determination of emissions from indoor materials and products using thermal desorption/gas chromatography/mass spectrometry30.903
Determination of grayanotoxins in honey by liquid chromatography tandem mass spectrometry using dilute-and-shoot sample preparation approach30.903
Determination of novel brominated flame retardants and polybrominated diphenyl ethers in serum using gas chromatography-mass spectrometry with two simplified sample preparation procedures30.903
Characterization and Differentiation of Geometric Isomers of 3-methylfentanyl Analogs by Gas Chromatography/Mass Spectrometry, Liquid Chromatography/Mass Spectrometry, and Nuclear Magnetic Resonance Spectroscopy30.903
Qualitative characterization of three combustion-related standard reference materials for polycyclic aromatic sulfur heterocycles and their alkyl-substituted derivatives via normal-phase liquid chromatography and gas chromatography/mass spectrometry30.903
A high throughput metabolomics method and its application in female serum samples in a normal menstrual cycle based on liquid chromatography-mass spectrometry30.903
Determination of volatile organic compounds including alcohols in refill fluids and cartridges of electronic cigarettes by headspace solid-phase micro extraction and gas chromatography-mass spectrometry30.903
A simple sample preparation for simultaneous determination of chloramphenicol and its succinate esters in food products using high-performance liquid chromatography/high-resolution mass spectrometry30.903
Fully automated sample preparation procedure to measure drugs of abuse in plasma by liquid chromatography tandem mass spectrometry30.903
Detection of seventy-two anabolic and androgenic steroids and/or their esters in horse hair using ultra-high performance liquid chromatography-high resolution mass spectrometry in multiplexed targeted MS2 mode and gas chromatography-tandem mass spec30.903
Preparation of Carbotrap/silica composite for needle trap field sampling of halogenated volatile organic compounds followed by gas chromatography/mass spectrometry determination30.903
Wipe Sampling Method and Evaluation of Environmental Variables for Assessing Surface Contamination of 10 Antineoplastic Drugs by Liquid Chromatography/Tandem Mass Spectrometry30.903
Analysis of volatile organic compounds in indoor environments using thermal desorption with comprehensive two-dimensional gas chromatography and high-resolution time-of-flight mass spectrometry30.903
Method validation, storage stability and field trial for residues of florasulam and pyroxsulam in cereal by liquid chromatography with tandem mass spectrometry30.903
Simultaneous quantitation of meperidine, normeperidine, tramadol, propoxyphene and norpropoxyphene in human plasma using solid-phase extraction and gas chromatography/mass spectrometry: Method validation and application to cardiovascular safety of t30.903
Sensitivity and resolution optimization in gas chromatography coupled to mass spectrometry analyses of volatile organic compounds present in vacuum environment30.903
A classification of liquid chromatography mass spectrometry techniques for evaluation of chemical composition and quality control of traditional medicines30.903
Comparison of Sample Preparation and Determination of 60 Veterinary Drug Residues in Flatfish Using Liquid Chromatography-Tandem Mass Spectrometry30.903
Gas chromatography-isotope dilution mass spectrometry method validation for target pesticides in soybeans30.903
A multi-analytical platform based on pressurized-liquid extraction, in vitro assays and liquid chromatography/gas chromatography coupled to high resolution mass spectrometry for food by-products valorisation. Part 1: Withanolides-rich fractions from30.903
Analysis of volatile organic compounds using cryogen-free thermal modulation based comprehensive two-dimensional gas chromatography coupled with quadrupole mass spectrometry30.903
A multi-analytical platform based on pressurized-liquid extraction, in vitro assays and liquid chromatography/gas chromatography coupled to high resolution mass spectrometry for food by-products valorisation. Part 2: Characterization of bioactive co30.903
An automated sample preparation approach for routine liquid chromatography tandem-mass spectrometry measurement of the alcohol biomarkers phosphatidylethanol 16:0/18:1, 16:0/16:0 and 18:1/18:130.903
[Determination of 67 volatile organic compounds in ambient air using thermal desorption-gas chromatography-mass spectrometry]30.903
[Determination of 34 pesticide residues in plant-derived foods by automated QuEChERS sample preparation system combined with high performance liquid chromatography-tandem mass spectrometry]30.903
Separation and Analysis of Sucrose Esters in Tobacco by Online Liquid Chromatography-Gas Chromatography/Mass Spectrometry30.903
Evaluating the performance of sample preparation methods for ultra-performance liquid chromatography/mass spectrometry based serum metabonomics30.903
Simultaneous ultraperformance liquid chromatography/tandem mass spectrometry determination of four antihypertensive drugs in human plasma using hydrophilic-lipophilic balanced reversed-phase sorbents sample preparation protocol30.903
Accreditation and Quality Assurance for Clinical Liquid Chromatography-Mass Spectrometry Laboratories30.903
Strengthening Data Defensibility in Government Human and Animal Food Testing Laboratories Through Accreditation: Lessons Learned From the FDA Accreditation Support Program30.903
Simultaneous quantification of THC-COOH, OH-THC, and further cannabinoids in human hair by gas chromatography-tandem mass spectrometry with electron ionization applying automated sample preparation30.903
High-throughput analytical method for 265 pesticides and environmental contaminants in meats and poultry by fast low pressure gas chromatography and ultrahigh-performance liquid chromatography tandem mass spectrometry30.903
Method Validation and Dissipation Behaviour of Dimethyl Disulphide (DMDS) in Cucumber and Soil by Gas Chromatography-Tandem Mass Spectrometry30.903
In-Depth Qualitative Analysis of Lime Essential Oils Using the Off-Line Combination of Normal Phase High Performance Liquid Chromatography and Comprehensive Two-Dimensional Gas Chromatography-Quadrupole Mass Spectrometry30.903
Determination of several synthetic cathinones and an amphetamine-like compound in urine by gas chromatography with mass spectrometry. Method validation and application to real cases30.903
Determination of optimal sample preparation for aldehyde extraction from pale malts and their quantification via headspace solid-phase microextraction followed by gas chromatography and mass spectrometry30.903
Volatile organic compounds fingerprinting in faeces and urine of Alzheimer's disease model SAMP8 mice by headspace-gas chromatography-ion mobility spectrometry and headspace-solid phase microextraction-gas chromatography-mass spectrometry30.903
Analysis of Acetyl Fentanyl in Postmortem Specimens by Gas Chromatography-Mass Spectrometry (GC-MS): Method Validation and Case Report30.903
Sample preparation and liquid chromatography-tandem mass spectrometry for the analysis of selected Pacific ciguatoxins in blood samples30.903
Comparison of sample preparation approaches and validation of an extraction method for nitrosatable pesticides and metabolites in human serum and urine analyzed by liquid chromatography - Orbital ion trap mass spectrometry30.903
Method validation and application of a selective multiresidue analysis of highly polar pesticides in food matrices using hydrophilic interaction liquid chromatography and mass spectrometry30.903
Development of a 96-well plate sample preparation method for integrated N- and O-glycomics using porous graphitized carbon liquid chromatography-mass spectrometry30.903
Urease-immobilized magnetic microparticles in urine sample preparation for metabolomic analysis by gas chromatography-mass spectrometry30.903
Determination of ethanamizuril, a novel triazine coccidiostat, in rat plasma by ultra-performance liquid chromatography system-tandem mass spectrometry and its application in a toxicological study30.903
Heptafluorobutyl Chloroformate-Based Sample Preparation Protocol for Nonchiral and Chiral Amino Acid Analysis by Gas Chromatography-Mass Spectrometry30.903
Implementation of a High-Resolution Liquid Chromatography-Mass Spectrometry Method in Quality Control Laboratories for Release and Stability Testing of a Commercial Antibody Product30.903
Determination of metabolites of Geotrichum citri-aurantii treated with peppermint oil using liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry30.903
Rapid sample preparation for ganglioside analysis by liquid chromatography mass spectrometry30.903
Fast and direct determination of catechol-3, 6-bis(methyleiminodiacetic acid) prototype in beagle dog plasma using liquid chromatography tandem mass spectrometry: A simplified and high throughput in-vivo method for the metal chelator30.903
Comprehensive Determination of Unregulated Pesticide Residues in Oregon Cannabis Flower by Liquid Chromatography Paired with Triple Quadrupole Mass Spectrometry and Gas Chromatography Paired with Triple Quadrupole Mass Spectrometry30.903
Optimization and validation of headspace solid-phase microextraction method coupled with gas chromatography-triple quadrupole tandem mass spectrometry for simultaneous determination of volatile and semi-volatile organic compounds in coking wastewate30.903
Integrating comprehensive two-dimensional gas chromatography mass spectrometry and parallel two-dimensional liquid chromatography mass spectrometry for untargeted metabolomics30.903
Gas Chromatography-Mass Spectrometry Method for Simultaneous Detection of Nine Alkaloids in Tobacco and Tobacco Products by QuEChERS Sample Preparation30.903
Development of a Headspace Solid-Phase Microextraction Gas Chromatography-Mass Spectrometry Method to Study Volatile Organic Compounds (VOCs) Emitted by Lavender Roots30.903
Gas chromatography and liquid chromatography coupled to mass spectrometry for the determination of fluorotelomer olefins, fluorotelomer alcohols, perfluoroalkyl sulfonamides and sulfonamido-ethanols in water30.903
Evaluation of the Sorbent Properties of Single- and Multiwalled Carbon Nanotubes for Volatile Organic Compounds through Thermal Desorption-Gas Chromatography/Mass Spectrometry30.903
Construction of a comprehensive beer proteome map using sequential filter-aided sample preparation coupled with liquid chromatography tandem mass spectrometry30.903
Analysis of artificially oxidized cardiolipins and monolyso-cardiolipins via liquid chromatography/high-resolution mass spectrometry and Kendrick mass defect plots after hydrophilic interaction liquid chromatography based sample preparation30.903
Untargeted Soil Metabolomics Using Liquid Chromatography-Mass Spectrometry and Gas Chromatography-Mass Spectrometry30.903
[Determination of 104 volatile organic compounds in air by double column gas chromatography-mass spectrometry/flame ionization detector coupled with electronically controlled cryo-focusing unit]30.903
Simple method to detect triclofos and its metabolites in plasma of children by combined use of liquid chromatography tandem-mass spectrometry and gas chromatography-mass spectrometry30.903
On the Use of In-Source Fragmentation in Ultrahigh-Performance Liquid Chromatography-Electrospray Ionization-High-Resolution Mass Spectrometry for Pesticide Residue Analysis30.903
Formation of by-products during chemical interesterification of lipids. Detection and characterization of dialkyl ketones by non-aqueous reversed-phase liquid chromatography-high resolution mass spectrometry and gas chromatography-mass spectrometry30.903
Field analyses of lavender volatile organic compounds: performance evaluation of a portable gas chromatography-mass spectrometry device30.903
Practical analysis of toxic substances useful for clinical toxicology: From sample preparation to screening Basics of gas chromatography-tandem mass spectrometry (GC/MS/MS) and its applications to toxicological analysis30.903
A High Throughput Three-step Ultra-performance Liquid Chromatography Tandem Mass Spectrometry Method to Study Metabolites of Atractylenolide-III30.903
Validation of a multi-residue method and estimation of measurement uncertainty of pesticides in drinking water using gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry30.903
Determination of volatile organic compounds in ambient air using Tenax adsorption and gas chromatography/mass spectrometry30.903
Determination of oxprenolol in human plasma by high-performance liquid chromatography, in comparison with gas chromatography and gas chromatography-mass spectrometry30.903
Pattern Recognition Analysis for Quality Control of Jia Ga Song Tang by GC-MS30.903
[Rapid determination of trace volatile organic compounds in ambient air by portable gas chromatography-mass spectrometry]30.903
A high throughput coupled with high performance liquid chromatography-tandem mass spectrometry method for determination of aflatoxin B1, B2, G1, G2 in 10 traditional Chinese medicines30.903
[Identification of volatile organic compounds in the manures of cow, hog and chicken by solid phase microextraction coupled with gas chromatography/mass spectrometry]30.903
Current Protocols in Food Analytical Chemistry30.903
Automated Coupling of Nanodroplet Sample Preparation with Liquid Chromatography-Mass Spectrometry for High-Throughput Single-Cell Proteomics30.903
Bile Acids Quantification by Liquid Chromatography-Tandem Mass Spectrometry: Method Validation, Reference Range, and Interference Study30.903
Sequential thermal dissolution of two low-rank coals and characterization of their structure by high-performance liquid chromatography/time-of-flight mass spectrometry and gas chromatography/mass spectrometry30.903
Qualitative and quantitative analysis of pyrrolizidine alkaloids for the entire process quality control from Senecio scandens to Senecio scandens-containing preparations by high performance liquid chromatography-tandem mass spectrometry30.903
Analysis of curcuminoids and volatile components in 160 batches of turmeric samples in China by high-performance liquid chromatography and gas chromatography mass spectrometry30.903
Fast Discrimination of Marijuana using Automated High-throughput Cannabis Sample Preparation and Analysis by Gas Chromatography-Mass Spectrometry30.903
Cannabidiol Determination on Peripheral Capillary Blood Using a Microsampling Method and Ultra-High-Performance Liquid Chromatography Tandem Mass Spectrometry with On-Line Sample Preparation30.903
Determination of recovery rates of adsorbents for sampling very volatile organic compounds (C1C6) in dry and humid air in the sub-ppb range by use of thermal desorption gas chromatography-mass spectrometry30.903
A high throughput approach for determination of dermorphin in human urine using liquid chromatography-mass spectrometry for doping control purposes30.903
Identification of key odorants in honeysuckle by headspace-solid phase microextraction and solvent-assisted flavour evaporation with gas chromatography-mass spectrometry and gas chromatograph-olfactometry in combination with chemometrics30.903
A 96-Monolithic inorganic hollow fiber array as a new geometry for high throughput solid-phase microextraction of doxorubicin in water and human urine samples coupled with liquid chromatography-tandem mass spectrometry30.903
Optimizing sample preparation workflow for bioanalysis of oligonucleotides through liquid chromatography tandem mass spectrometry30.903
Determination of Semi-volatile Organic Compounds in Groundwater by Soli d Phase Extraction/Gas Chromatography/Mass Spectrometry30.903
Development of Sensitive and High Throughput Liquid Chromatography-Tandem Mass Spectrometry Method for Quantification of Haloperidol in Human Plasma with Phospholipid Removal Pretreatment30.903
Synergistic optimization of Liquid Chromatography and Mass Spectrometry parameters on Orbitrap Tribrid mass spectrometer for high efficient data-dependent proteomics30.903
Extensive evaluation of sample preparation workflow for gas chromatography-mass spectrometry-based plasma metabolomics and its application in rheumatoid arthritis30.903
Method Validation of Acrylamide in Dried Blood Spot by Liquid Chromatography-tandem Mass Spectrometry30.903
Optimized sample preparation for fecal volatile organic compound analysis by gas chromatography-mass spectrometry30.903
Determination of Polyvinyl Acetate in Chewing Gum Using High-Performance Liquid Chromatography-Evaporative Light Scattering Detector and Pyrolyzer-Gas Chromatography-Mass Spectrometry30.903
Method Validation for Quantitative Analysis of Metribuzin in Wheat by Liquid Chromatography-Tandem Mass Spectrometry30.903
The application of in-source fragmentation in ultra-high performance liquid chromatography-electrospray ionization -tandem mass spectrometry for pesticide residue analysis30.903
Quantification of seven microbial volatile organic compounds in human serum by solid-phase microextraction gas chromatography-tandem mass spectrometry30.903
High Throughput Residue Analysis of Indaziflam and its Metabolites in Palm Oil Using Liquid Chromatography-Tandem Mass Spectrometry30.903
Optimisation of Urine Sample Preparation for Headspace-Solid Phase Microextraction Gas Chromatography-Mass Spectrometry: Altering Sample pH, Sulphuric Acid Concentration and Phase Ratio30.903
Analysis of Caffeine, Chlorogenic Acid, Trigonelline, and Volatile Compounds in Cold Brew Coffee Using High-Performance Liquid Chromatography and Solid-Phase Microextraction-Gas Chromatography-Mass Spectrometry30.903
Characterization of powdered turmeric by liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry30.903
Analysis of endogenous gibberellins and gibberellin metabolites from Dalbergia dolichopetala by gas chromatography-mass spectrometry and high-performance liquid chromatography-mass spectrometry30.903
Assessment of solid phase microextraction as a sample preparation tool for untargeted analysis of brain tissue using liquid chromatography-mass spectrometry30.903
An Improved, Automated Whole-Air Sampler and Gas Chromatography Mass Spectrometry Analysis System for Volatile Organic Compounds in the Atmosphere30.903
Supplementary material to "An Improved, Automated Whole-Air Sampler and Gas Chromatography Mass Spectrometry Analysis System for Volatile Organic Compounds in the Atmosphere"30.903
Q11264333330.903
Comparing Efficiency of Lysis Buffer Solutions and Sample Preparation Methods for Liquid Chromatography-Mass Spectrometry Analysis of Human Cells and Plasma30.903
HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY AND GAS CHROMATOGRAPHY — MASS SPECTROMETRY METHODS FOR THE DETERMINATION OF IMIDACLOPRID, CHLORPYRIFOS, AND BIFENTHRIN RESIDUES IN TEA LEAVES30.903
A metabolomics study for the quality control of Black seed oil (Nigella sativa) based on Gas Chromatography-Mass Spectrometry30.903
Multi-pesticide residue analysis in nutraceuticals from grape seed extracts by gas chromatography coupled to triple quadrupole mass spectrometry30.903
Multi-residue method validation and safety evaluation of pesticide residues in seed spices cumin (Cuminum cyminum) and coriander (Coriandrum sativum) by gas chromatography tandem mass spectrometry (GC–MS/MS)30.903
A comparative study of amino acid measurement in leaf extracts by gas chromatography-time of flight-mass spectrometry and high performance liquid chromatography with fluorescence detection30.903
Extraction of volatile organic compounds from leaves of Ambrosia artemisiifolia L. and Artemisia annua L. by headspace-solid phase micro extraction and simultaneous distillation extraction and analysis by gas chromatography/mass spectrometry30.903
Method validation, residue and risk assessment of 260 pesticides in some leafy vegetables using liquid chromatography coupled to tandem mass spectrometry30.903
A proper and systematic qualitative method validation procedure and its application to gas chromatography-mass spectrometry analysis of Chemical Weapons Convention related chemicals30.903
An assessment of quality assurance/quality control efforts in high resolution mass spectrometry non-target workflows for analysis of environmental samples30.903
Identification of isoflavonoids in Radix Puerariae for quality control using on-line high performance liquid chromatography-diode array detector-electrospray ionization-mass spectrometry coupled with post-column derivatization30.903
Q11547885030.903
Determination of Volatile Organic Compounds in Andean Tomato Landraces by Headspace Solid Phase Microextraction-Gas Chromatography-Mass Spectrometry30.903
The next wave of innovation in laboratory automation: systems for auto-verification, quality control and specimen quality assurance30.903
Gas Chromatography-Mass Spectrometry Analysis of Human Exhaled Volatile Organic Compounds via Wearable Facemask Microextraction Sampling30.903
Non-target Screening Analysis of Volatile Organic Compounds in Drinking Water by Headspace-Solid Phase Microextraction Gas Chromatography-Mass Spectrometry30.903
An eco-friendly sample preparation procedure based on air-assisted liquid-liquid microextraction for the rapid determination of phthalate metabolites in urine samples by liquid chromatography-tandem mass spectrometry30.903
Method Validation and Application of Liquid Chromatography- Mass Spectrometry/Mass Spectrometry for Determination of Neonicotinoid Pesticide Residues in Tomato30.903
Development and deployment of an airborne gas chromatography/mass Spectrometer to measure tropospheric volatile organic compounds30.903
Pesticide Residue Analysis in Waters by Solid‐Phase Microextraction Coupled to Gas Chromatography‐Tandem Mass Spectrometry30.903
Optimization of a thermal desorption-gas chromatography/mass spectrometry method for characterization of semi-volatile organic compounds in high time resolved PM2.530.903
Determination of Urinary Heterocyclic Aromatic Amines in Smokers and Non-Smokers by Using Sensitive and High Throughput Liquid Chromatography-Tandem Mass Spectrometry30.903
Characterisation of volatile and non-volatile compounds in pomelo by gas chromatography-olfactometry, gas chromatography and liquid chromatography-quadrupole time-of-flight mass spectrometry30.903
Analysis of a Gas Chromatography/Mass Spectrometry Thermal Desorption System with Simultaneous Sniffing for Determination of Off-Odor Compounds and Volatile Organic Compounds in Polypropylene Composites30.903
Determination of selenoethionine by flow injection-hydride generation-atomic absorption spectrometry/high-performance liquid chromatography-hydride generation-high power nitrogen microwave-induced plasma mass spectrometry30.903
Analysis of fire ant pesticides in water by solid-phase microextraction and gas chromatography/mass spectrometry or high-performance liquid chromatography/mass spectrometry30.903
Volatile organic compounds and odor emissions from veneered particleboards coated with water-based lacquer detected by gas chromatography-mass spectrometry/olfactometry30.903
Optimization of the sample preparation method for adherent cell metabolomics based on ultra-performance liquid chromatography coupled to mass spectrometry30.903
Sampling and analysis of volatile organic compounds in estuarine air by gas chromatography and mass spectrometry30.903
Continuous monitoring of volatile organic compounds in water using on-line membrane extraction and microtrap gas chromatography system30.903
Basic approaches and methods for quality assurance and quality control in sample collection and storage for environmental monitoring30.903
Optimization of serum sample preparation aiming at metabolomics analysis by comprehensive two-dimensional gas chromatography coupled to mass spectrometry30.903
Analytical Method Validation for Determining Organophosphorus Pesticides in Baby Foods by a Modified Liquid–Liquid Microextraction Method and Gas Chromatography–Ion Trap/Mass Spectrometry Analysis30.903
Method Validation and Measurement Uncertainty Estimation for Determination of Multiclass Pesticide Residues in Tomato by Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)30.903
Q13629192130.903
Jojoba oil analysis by high pressure liquid chromatography and gas chromatography/mass spectrometry30.903
NanoSIMS24.502