Multiresidue analysis of 213 pesticides in leek and garlic using QuEChERS-based method and gas chromatography-triple quadrupole mass spectrometry

文献类型： 外文期刊

第一作者： He, Zeying

作者： He, Zeying;Chen, Shanshan;Wang, Lu;Peng, Yi;Luo, Ming;Liu, Xiaowei;Chen, Shanshan;Wang, Wenwen

作者机构：

关键词： Multiresidue analysis;Leek;Garlic;QuEChERS;Gas chromatography-tandem mass spectrometry

期刊名称：ANALYTICAL AND BIOANALYTICAL CHEMISTRY （ 影响因子：4.142； 五年影响因子：3.863 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： A simple and sensitive multiresidue pesticide analysis method was developed and validated for 213 pesticides in leek and garlic based on QuEChERS (quick, easy, cheap, effective, rugged, and safe) procedure combined with gas chromatography-triple quadrupole mass spectrometry. In the QuEChERS method, commercial extraction salt packet, dispersive solid-phase extraction adsorbent packet, and ceramic homogenizer were used to simplify the extraction procedure. The gas chromatography-tandem mass spectrometry (GC-MS/MS) parameters were optimized for analysis of 213 pesticides within a 38-min run time with a limit of quantification for most of the pesticides at 2 mu g kg(-1). The coefficient of determination (r(2)) was > 0.99 within the calibration linearity range of 2-400 mu g kg(-1). Most recoveries at 2, 5, 10, 20, 50, 100, and 200 mu g kg(-1) were in the range of 70-120 % (n=6) with associated relative standard deviations (RSDs) of <20 %, indicating satisfactory precision. Real leek and garlic samples were analyzed for method application.

分类号： O65

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