分析测试学报2012，Vol.31Issue(10)：1217-1222,6.DOI:10.3969/j.issn.1004-4957.2012.10.001
在线凝胶渗透色谱串联气相色谱-质谱快速测定粮谷及油料作物中29种农药残留
Rapid Determination of 29 Pesticide Residues in Cereals and Oil Crops by Online Gel Permeation Chromatography Coupled with Gas Chromatography-Mass Spectrometry
摘要
Abstract
A based on automated online gel permeation chromatography coupled with gas chromatography - mass spectrometry (GPC - GC/MS) method was developed for the rapid determination of 29 pesticide residues in cereals and oil crops. Pesticides were extracted from cereals and oil crops samples with acetonitrile and decontaminated via primary secondary amine ( PSA) sorbents, then determined by GPC/GC - MS. The identification and detection of target compounds were achieved in electron impact(EI) mode under selected ion monitoring (SIM) mode. The calibration curves of 29 pesticide residues were linear in the range of 0. 25 - 600 μg·L-1 with good correlation coefficients more than 0. 99. The recoveries for all compounds in feeds at three fortified levels of 1MRL, 2MRL and 4MRL were in the range of 65% - 148% . The limits of quantitation( LOQs, S/N = 10) for 11 pesti-cides(e. g. dieldrin, parathion - ethyl and methamidophos, etc. ) were in the range of 2. 0 - 6. 0 (μg · kg-1 and those of the other 18 pesticides (such as dichlorvos, dimethoate and HCH, etc. ) were less than 1.0 μg · kg-1. The method was simple, rapid and reliable, and could meet the require-ment for the simultaneous determination and analysis of 29 pesticide residues in cereals and oil crops.关键词
在线凝胶渗透色谱串联气相色谱-质谱/农药残留/粮谷/油料作物Key words
online gel permeation chromatography coupled with gas chromatography - mass spec-trometry( GPC/GC ?MS) / pesticide residues/ cereals/ oil crops分类
化学化工引用本文复制引用
贾玮,凌云,郝静,张峰,蒋萍萍,雍炜,冯峰,黄峻榕,储晓刚..在线凝胶渗透色谱串联气相色谱-质谱快速测定粮谷及油料作物中29种农药残留[J].分析测试学报,2012,31(10):1217-1222,6.基金项目
科技部科技支撑计划课题资助(2011BAK10B04) （2011BAK10B04）
