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
作者： He, Zeying 1 ; Chen, Shanshan 1 ; Wang, Lu 1 ; Peng, Yi 1 ; Luo, Ming 1 ; Wang, Wenwen 3 ; Liu, Xiaowei 1 ;
作者机构： 1.Minist Agr, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China
2.Shanghai Acad Agr Sci, Inst Agrofood Stand & Testing Technol, Shanghai 201403, Peoples R China
3.Agilent Technol China Co Ltd, Beijing 100102, Peoples R China
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.
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