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Materias / palabras clave: analytical chemistry, separation, chromatography, sample preparation; Science: Chemistry: Analytical chemistry

ObjectiveThis study aims to investigate the correlation between trace element concentrations, 25-hydroxyvitamin D [25(OH)D] levels, and the severity of tic disorders (TD) in children from the Hubei region. Additionally, ...

Abstract Volatile compounds (VOCs) are an important factor affecting meat quality. However, the characteristic VOCs in different parts of donkey meat remain unknown. Accordingly, this study represents a preliminary inves...

Abstract The aim of this study was to evaluate the potential use of fatty acids, triacylglycerols, and cholesterol in the detection of adulterated milk fat. The fatty acid, triacylglycerol, and cholesterol profiles of th...

ObjectiveDeveloped a method based on solid phase extraction（SPE） combined with gas chromatography-mass spectrometry （GC-MS） to determine 1，2-propanediol in milk.MethodsThe precipitation technology of protein an...

ObjectiveTo establish the first method for the simultaneous determination of 11 p-phenylenediamine antioxidants （PPDs） and their oxidation products in milk by solid-phase extraction （SPE） coupled with ultra perfo...

ObjectiveA method was developed for the simultaneous determination of seven food additives in prepared pork dishes using gel permeation chromatography cleanup coupled with ultra-high performance liquid chromatography-tan...

ObjectiveTo establish a method for the determination of polychlorinated naphthalenes in bivalve molluscs by gas chromatography-triple quadrupole mass spectrometry （GC-MS/MS）.MethodsThe samples were dehydrated with an...

ObjectiveTo establish a high-performance liquid chromatography tandem mass spectrometry method for rapid determination of nine biogenic amines in aquatic products （fish， shrimp， shellfish） and meat （pork， bee...

Abstract Flunixin is a veterinary nonsteroidal anti-inflammatory agent whose residues have been investigated in their original form within tissues such as muscle and liver. However, flunixin remains in milk as a metaboli...

ObjectiveTo develop a method for the determination of atropine， scopolamine and anisodamine in buckwheat flour by ultra performance liquid chromatography-tandem mass spectrometry.MethodsSamples were extracted by 80% ac...

ObjectiveIn the experiment，using liquid-liquid extraction solid-phase extraction method to remove fat content and interfering impurities from cocoa products，establishing a high performance liquid chromatography metho...

ObjectiveTo establish a method for the determination of hexabromocyclododecanes in infant formula using ultra performance liquid chromatography-tandem mass spectrometry （UPLC-MS/MS）.MethodsThe samples were dissolved ...

ObjectivesA high-performance liquid chromatography method was developed to determine the purity of theaflavins， a food additive.MethodsThe samples were dissolved in ethanol-water （2∶8，V/V） solution and separate...

The therapeutic benefit of phosphorothioate oligodeoxynucleotides (PS-ODN) containing immune stimulatory sequences has been demonstrated in animal models of cancer and infection. Several tools are available for the deter...

Abstract Vitamin B12 deficiency may lead to serious health issues in both infants and adults. A simple analytical method involving sample pretreatment with enzyme, followed by cyanide addition under acidic conditions; se...

Phenol is a toxic aromatic compound widely released into the environment through oil refineries, petrochemical industries, and industrial effluents, posing serious risks to ecosystems and human health. Given its persiste...

Abstract The miscibility behaviour of polybenzylmethacrylate (PBMA) blends with polyethylene oxide (PEO) at different compositions has been studied by inverse gas chromatography (IGC). The adequacy of two molecule probes...

Abstract The objective of this study was to establish a multi-residue quantitative method for the analysis of anthelmintic and antiprotozoal drugs in various livestock products (beef, pork, and chicken) using ultra-high-...

Abstract The liquid chromatography mass spectrometry (LC-MS)-based metabolomic and lipidomic methodology has great sensitivity and can describe the fingerprint of metabolites and lipids in pork and beef. This approach is...

ObjectiveTo establish a highly sensitive and high-throughput analytical method for the simultaneous determination of 38 organic ultraviolet absorbents （OUVAs） by pass-through solid phase extraction （SPE） coupled ...

Abstract This study addresses the prevalent issue of meat species authentication and adulteration through a chemometrics-based approach, crucial for upholding public health and ensuring a fair marketplace. Volatile compo...

ObjectiveTo establish a gas chromatography-tandem mass spectrometry （GC-MS/MS） method for the determination of ethylene oxide and 2-chloroethanol in pasta sauce.MethodsThe sample was extracted with acetonitrile， cl...