Kết quả tìm kiếm - "UPLC-MS/MS"

This work proposes an insight into the mycotoxins detected in wheat from the 2023 and 2024 harvests in Belgium and highlights the link between agronomic conditions and mycotoxin contamination. The study utilized samples from a Belgian trial network, covering nine locations in 2023 and eight in 2024,...

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Ruanjuan Zhan,* Yuxin Shen,* Haoxin Fu, Hualu Wu, Xiaohai Chen, Yige Yu, Ren-Ai Xu Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China*These authors contributed equally to this workCorr...

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Referring to GB 5009.291—2023 "National Food Safety Standard for the Determination of Chlorate and Perchlorate in Foods" and BJS 201706 "Determination of Chlorate and Perchlorate in Foods", the chlorate and perchlorate in soy sauce were determined by ultra-high pe...

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Mycotoxins are toxic secondary metabolites produced by fungi that often contaminate food materials used in beer production, posing health risks to consumers. This study investigated the occurrence and levels of mycotoxins in commercial beers commercially available in São Paulo, Brazil, and assessed...

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A sensitive method was developed for detecting diazepam residues in aquatic products using magnetic dispersive solid-phase extraction (MDSPE) coupled with ultra-performance liquid chromatography–tandem mass spectrometry (UPLC-MS/MS). Samples extracted with 1% ammonia–acetonitrile were purified using...

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Heterocyclic amines (HCAs), recognized as mutagens and Group 2A carcinogens, are frequently detected in high-temperature cooking process of meats including broiling, grilling, pan-frying, or barbecuing. In currently study, the HCAs profiles (types and quantities) were analized during the frying of b...

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ABSTRACT: This study developed a novel analytical method integrating liquid-liquid extraction with solid-phase extraction for simultaneous detection of oxyclozanide (OXY) and levamisole hydrochloride (LMS) residues in milk using ultra-high-performance liquid chromatography tandem MS (UPLC-MS/MS). Me...

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This study aimed to reveal the lipid composition and distribution and characterize the lipid metabolism profile in the three distinct parts of four guava varieties with varying textures and colors using liquid chromatography–electrospray ionization–tandem mass spectrometry. The four varieties, colle...

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Barley is a rich source of phenolic compounds (PCs), whose accumulation is strongly influenced by environmental conditions, directly affecting grain nutritional quality. This study investigated the effects of shading during grain filling on PCs synthesis in three hull-less barley genotypes with diff...

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Zixuan Zhang,1,* Jiaxi Shi,2,* Fuxuan Liu,1 Jing Zhou,1 Qi Shen,3 Xuguang Shi1 1School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, People’s Republic of China; 2The First School of Clinical Medicine, Guangzhou University of Chinese...

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<b>Background:</b> <i>Commiphora leptophloeos</i> has long been used in Latin American folk medicine for the treatment of respiratory and gastrointestinal disorders. Therefore, toxicological and phytochemical investigations are required to assess the safety and support the ev...

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To calyx persistence in Korla fragrant pear (<i>Pyrus sinkiangensis</i>) significantly impacts fruit marketability, with persistent calyx causing up to 40% reduction in premium-grade fruit yield. Investigating the hormonal mechanisms underlying calyx abscission and persistent in Korla Fr...

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旨在为酥油中真菌毒素污染风险的监测与防控提供技术支撑，建立了QuEChERS技术结合超高效液相色谱-串联质谱法（UPLC-MS/MS）测定酥油中17种真菌毒素的检测方法。酥油样品经过3%甲酸水和3%甲酸乙腈溶液分步提取后，加入MgSO4和NaCl进行盐析处理，通过0 ℃低温离心和正己烷除脂，以N-丙基乙二胺（PSA）和十八烷基键合硅胶（C18）吸附剂作为净化填料净化后，经ACQUITY UPLC BEH C18色谱柱（100 mm × 2.1 mm，1.7 μm）实现分离，采用多反应监测（MRM）模式检测，基质匹配曲线外标法定量。结果表明：17种真菌毒素在相应质量浓度范围内呈良好的线性关系，决...

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Loquat (Eriobotrya japonica) flowers are a rich source of bioactive flavonoids, but their nutraceutical potential depends on post-harvest processing. This study evaluated the impact of heat-drying (HD) and freeze-drying (FD) on flavonoid retention in loquat flowers and their hot-water powdered extra...

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In this study, we integrated HSQC-based DeepSAT with UPLC-MS/MS to guide the isolation of omega-3 polyunsaturated fatty acid derivatives (PUFAs) from marine resources. Through this approach, four new (<b>1</b>–<b>4</b>) and nine known (<b>5</b>–<b>13</b&g...

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In Italy, the law on road homicide (Law no. 41/2016) introduced specific provisions for drivers who cause severe injuries or death to a person due to the violation of the Highway Code. The use of alcohol or drugs while driving constitutes an aggravating circumstance of the offence and provides for a...

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