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Determination of Perfluororganic Compounds in Whole Blood and Tissues of Laboratory Animals by Gas-Liquid Chromatography–Mass Spectrometry
AbstractA procedure for the determination of a group of perfluororganic compounds, promising for medical use, in whole blood and tissues of...
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Sample Screening and Determination of 214 Veterinary Drug Residues in Food Using Chromatography–High-Resolution Mass Spectrometry
AbstractA combination of sample screening and subsequent confirmatory detection of contaminants represents an optimal strategy for routine analysis...
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Trace determination of fifteen free amino acids in drinking source water via solid-phase extraction coupled with liquid chromatography tandem mass spectrometry
Amino acids (AAs) are important nitrogen-containing organics in water, and a large number of reports have proven that they were the precursors of...
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Identification and Determination of Nonionic Surfactants by Ultrahigh-Performance Liquid Chromatography–High-Resolution Mass Spectrometry
AbstractWe proposed a procedure for the identification and determination of nonionic surfactants in natural waters by ultra-HPLC with high-resolution...
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Analysis of degradation products of Novichok agents in human urine by hydrophilic interaction liquid chromatography–tandem mass spectrometry
PurposeThe detection of hydrolysis products of Novichok agents in biological samples from victims is important for confirming exposure to these...
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Determination of Ochratoxin A in Plant Products: Immunoaffinity Column and Liquid Chromatography with Fluorescence Detector
Ochratoxins are mycotoxins produced by various fungi of the genus Aspergillus and Penicillium, e.g., A. ochraceus, A. carbonarius, and P. verrucosum....
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Influence of host–guest interactions on analytical performance of direct analysis in real-time mass spectrometry
To systematically study the influence of host–guest interactions on the analytical performance of direct analysis in real time mass spectrometry...
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Comprehensive characterization of per- and polyfluoroalkyl substances in wastewater by liquid chromatography-mass spectrometry and screening algorithms
Per- and polyfluoroalkyl substances (PFASs) constitute a large category of synthetic environmental pollutants, many of which remain unknown and...
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Use of High-Performance Liquid Chromatography–Mass Spectrometry of Adipose Tissue for Detection of Bioaccumulation of Pyriproxyfen in Adults of Lithobates catesbeianus
The aims of the study were: (i) evaluate the efficacy of using amphibian adipose tissue as a valid biomarker of water contaminated by pyriproxyfen;...
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Liquid chromatography versus supercritical fluid chromatography coupled to mass spectrometry: a comparative study of performance for multiresidue analysis of pesticides
Abundant studies have been published evaluating different parameters of reverse-phase liquid chromatography (LC) and supercritical fluid...
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Easily Operable Quantification Method of 21 Plant-Derived Alkaloids in Human Serum by Automatic Sample Preparation and Liquid Chromatography–Tandem Mass Spectrometry
In this study, we developed an easily operable quantification method for 21 plant-derived alkaloids in human serum by automatic sample preparation...
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Detection of IEMs by Mass Spectrometry Techniques in High-Risk Children: A Pilot Study
ObjectivesTo determine the incidence and types of inborn errors of metabolism (IEMs) in high-risk children using mass spectrometry techniques.
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Gadolinium-doped mesoporous tungsten oxides: Rational synthesis, gas sensing performance, and mechanism investigation
As a typical family of volatile toxic compounds, benzene derivatives are massive emission in industrial production and the automobile field, causing...
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Carbohydrate Analysis in Fermentation Samples by Reversed-Phase Liquid Chromatography with Mass Spectrometry Detection Using Precolumn Derivatization with Dibenzylamine
Liquid chromatography–mass spectrometry (LC–MS) technique has been widely used for the determination of trace carbohydrate compounds in biological...
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Determination of the protective effects of Hua‐Zhuo‐Jie‐Du in chronic atrophic gastritis by regulating intestinal microbiota and metabolites: combination of liquid chromatograph mass spectrometer metabolic profiling and 16S rRNA gene sequencing
BackgroundHua-Zhuo-Jie-Du (HZJD), a Chinese herbal prescription consisting of 11 herbs, is commonly used in China to treat chronic atrophic...
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Optimization of Ultra-High-Performance Liquid Chromatography-Electrospray Ionization-Mass Spectrometry Detection of Glutamine-FMOC Ad-Hoc Derivative by Central Composite Design
Glutamine (Gln) is converted to excitatory (glutamate, aspartate) and inhibitory (γ-amino butyric acid) amino acid neurotransmitters in brain, and is...
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Quantitative Determination of Antioxidant Compounds in Fruits Using Liquid Chromatography Tandem Mass Spectrometry
Quantification of antioxidant compounds in fruits is important in many studies of food chemistry, including those regarding the investigation of...
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Ultra-sensitive isotope probing to quantify activity and substrate assimilation in microbiomes
BackgroundStable isotope probing (SIP) approaches are a critical tool in microbiome research to determine associations between species and...
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Determination of Drug-to-Antibody Ratio of ADCs
The drug-to-antibody ratio (DAR) refers to the number of small toxic molecules per antibody in the antibody-drug conjugates (ADCs). DAR can directly...
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Screening, characterization, and determination of suspected additives bimatoprost and latanoprost in cosmetics using NMR and LC–MS methods
Recently, many new types of cosmetic illegal additives have been screened in the market. Most of the new additives were new drugs or analogues with...
