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Nitrogen stable isotope analysis of sulfonamides by derivatization-gas chromatography-isotope ratio mass spectrometry
The continuous introduction of micropollutants into the environment through livestock farming, agricultural practices, and wastewater treatment is a...
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Simple chromatographic determination of aflatoxins in Korean fermented soybean products doenjang, ganjang, and gochujang, with comparison of derivatization methods
Korean fermented soybean products doenjang, ganjang, and gochujang are vulnerable to contamination with aflatoxigenic fungi in the open fermentation...
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UPLC Coupled with a Post-column Derivatization Approach for Identification of Bioactive Compounds in Huanglian Jiedu Decoction
A UPLC coupled with post-column derivatization (PCD) and diode array detector (DAD) collecting biochemical reaction signal analysis technique...
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Structural characterization of N-acyl-homoserine lactones from bacterial quorum sensing using LC–MS/MS analyses after Paternò-Büchi derivatization in solution
Bacterial quorum sensing is a chemical language allowing bacteria to interact through the excretion of molecules called autoinducers, like N -acyl-homo...
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Molecularly imprinted dispersive micro solid-phase extraction and tandem derivatization for the determination of histamine in fermented wines
Histamine causes allergic reactions and can serve as an indicator for assessing food quality. This study designed and developed a dispersive micro...
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Determination of 9 Biological Amines and 2 Organic Amines in Fish Meat by Precolumn Derivatization Liquid Chromatography-Tandem Mass Spectrometry Based on Hinsberg Reaction
Multiple studies have demonstrated the harmful effects of consuming high levels of biogenic amines (BAs) and organic amines (OAs), underscoring the...
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A Method to Assess Glyphosate, Aminomethylphosphonic Acid and Glufosinate in Chinese Herb Samples Using a Derivatization Method and LC–MS/MS
An effective analytical method to quantify glyphosate (Gly), aminomethylphosphonic acid (AMPA) and glufosinate (Glu) in four kinds of Chinese herbs...
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Determination of the Content of Free Amino Acids and Their Profiling
When assessing sourdough maturity, the quantification of free amino acids (FAA) is of utmost importance, since their concentration is one of the...
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Determination of short-chain fatty acids by N,N-dimethylethylenediamine derivatization combined with liquid chromatography/mass spectrometry and their implication in influenza virus infection
Short-chain fatty acids (SCFAs) are the end products of the fermentation of complex carbohydrates by the gut microbiota. Although SCFAs are...
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A highly sensitive pre-column derivatization method for fluorescence detection of tobramycin using 2-naphthalenesulfonyl chloride as a derivatizing agent
A new, simple, rapid and highly sensitive high performance liquid chromatographic method was developed for the determination of tobramycin (TOB) in...
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Simultaneous analysis of PAH urinary mono- and dihydroxylated metabolites by GC-MS-MS following SPE and two-stage derivatization
A new gas chromatography–tandem mass spectrometry method for the determination of mono- and dihydroxylated polycyclic aromatic hydrocarbon...
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Separation and identification of monoglucuronides of vitamin D3 metabolites in urine by derivatization-assisted LC/ESI–MS/MS using a new Cookson-type reagent
A liquid chromatography/electrospray ionization-tandem mass spectrometry (LC/ESI–MS/MS) method was developed using a new Cookson-type reagent,...
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A rapid and robust method for amino acid quantification using a simple N-hydroxysuccinimide ester derivatization and liquid chromatography-ion mobility-mass spectrometry
The vast majority of mass spectrometry (MS)-based metabolomics studies employ reversed-phase liquid chromatography (RPLC) to separate analytes prior...
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Online Column Extraction Coupled with Double-Trap Column System for HPLC Determination of Valproic Acid in Human Plasma Without Derivatization
An automated online column extraction coupled with high-performance liquid chromatography (HPLC) and equipped with a double-trap column system was...
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Analysis of Thiamine, Riboflavin and Nicotinic Acid in Meat
Vitamins play a crucial role in ensuring food quality. When analyzing B complex vitamins in food samples, a variety of methods are employed,...
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Simultaneous Determination of Aromatic, Short-Chain Fatty and Dicarboxylic Acids in Blood Serum and Cerebrospinal Fluid by Gas Chromatography–Mass Spectrometry
AbstractAromatic, short-chain fatty and dicarboxylic acids are low-molecular-weight microbial and mitochondrial metabolites; therefore, their...
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Sample preparation for fatty acid analysis in biological samples with mass spectrometry-based strategies
Fatty acids (FAs) have attracted many interests for their pivotal roles in many biological processes. Imbalance of FAs is related to a variety of...
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Leveraging the use of ionic liquid capillary columns and GC×GC-MS for fatty acid profiling in human colostrum samples
Lipids in human colostrum provide the majority of energy intake and essential fatty acids for develo** infants. The fatty acid composition of human...
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Derivatization gas chromatography negative chemical ionization mass spectrometry for the analysis of trace organic pollutants and their metabolites in human biological samples
Gas chromatography negative chemical ionization mass spectrometry (GC-NCI-MS) is a preferred instrumental approach for the trace and ultra-trace...
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Amino Alcohols: Chromatographic Methods for the Determination of Derivatives of Nitrogen-Containing Toxic Chemicals
AbstractWe reviewed publications over the last 20 years devoted to contemporary methods for determining amino alcohols as markers of...
