Results 61 to 70 of about 4,415 (184)
Shipin gongye ke-jiAn analysis method for simultaneous determination of 47 kinds of pesticide residues in tea was established by QuEChERS method combined with ultra performance liquid chromatography-tandem mass spectrometry.
Huawen LIU, Meiqing DENG, Beiyan CHEN
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Zhejiang Daxue xuebao. Lixue ban, 2017 建立了超高效液相色谱串联质谱法测定水产品中的红霉素残留量.样品用改进的QuEChERS（快速、简单、廉价、高效、灵活和安全）进行提取净化，经乙腈快速提取，无水硫酸镁和氯化钠除水后，用N-丙基乙二胺(PSA)净化，液相色谱串联质谱分析测定.在ACQUITY UPLC BEH C18色谱柱上进行分离，采用梯度洗脱，以0.1%甲酸水溶液和甲醇为流动相，电喷雾正离子电离，多反应监测模式，内标法定量.结果表明：红霉素浓度在0.5~50 µg • L-1时具有良好的线性关系，相关系数为0.997 6，定量限为0.3
YANZhongyong(严忠雍) +7 more
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Zhongguo shipin weisheng zazhi, 2020 Objective To establish a method for determination of 6 kinds of carbamate pesticides and 3 kinds of chloronicotinyl pesticides in Chinese Kushui rose by ultra high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) coupled with ...
Lin ZHANG +5 more
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Fast Determination of 20 Pesticides Residues in Wheat Using QuEChERS-modified and GC-MS/MS
Liang you shipin ke-ji, 2022 A method for the determination of 20 pesticides residues in wheat by QuEChERS coupled with GC-MS/MS was developed. The effect of sorbent for purification was investigated. The matrix effect was also studied.
PENG Xing-xing +2 more
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Pest Management Science, Volume 82, Issue 7, Page 7154-7163, July 2026.This study adapted and validated the dynamiCROP model for spinach, a leafy vegetable not previously included in its standard framework. The findings confirm that model‐predicted pesticide concentrations, when integrated into hazard quotient (HQ) calculations, can effectively support dietary risk assessment.
Ji‐Woo Yu +7 more
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Analysis of selected organochlorine pesticides in honey samples from Poland: a pilot study
Roczniki Panstwowego Zakladu HigienyBackground Organochlorine pesticides (OCPs) were widely used in crop protection in the past. Due to their high chemical persistence and widespread presence in the environment, they have been classified as persistent organic pollutants (POPs). Given their
Radosław Lewiński +5 more
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Zhongguo shipin weisheng zazhi, 2020 Objective To establish a method for the determination of norfloxacin, ciprofloxacin, lomefloxacin, enrofloxacin, ofloxacin and pefloxacin in aquatic products by QuEChERS with ultra performance liquid chromatographytandem mass spectrometry (UPLC-MS/MS ...
Rongxuan XUE +4 more
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Shipin gongye ke-ji, 2022 A method was developed for the determination of 14 anabolic androgenic steroids including trenbolone, boldenone and nandrolone in animal derived foods by liquid chromatography-tandem mass spectrometry.
Jing WANG +3 more
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eFood, Volume 7, Issue 3, June 2026.Graphical abstract showing nanoencapsulation‐based yogurt fortification, highlighting nanocarrier incorporation, improved storage stability, enhanced bioaccessibility, targeted gastrointestinal release, nutrient absorption, and gut microbiota modulation.
Farhang Hameed Awlqadr +8 more
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Overview of the QuEChERS Method for Sample's extraction in different food, environmental and biological samples. [PDF]
Records of Pharmaceutical & Biomedical SciencesThe QuEChERS method is a sample preparation technique that was first applied in analytical chemistry to extract and purify pesticide residues in food. QuEChERS is an acronym for (quick, easy, cheap, effective, rugged, and safe).
Ghada Salama +3 more
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