茶叶科学2011，Vol.31Issue(4)：283-288,6.
茶叶中7种除草剂农药残留气相色谱-串联质谱测定
Determination of 7 Herbicide Residues in Tea Using Gas Chromatography - Tandem Mass
摘要
Abstract
A gas chromatography-tandem mass spectrometric (GC-MS/MS) method has been developed for simultaneous determination of 7 herbicide residues in tea by accelerated solvent extraction (ASE) and gel permeation chromatography (GPC) cleaned up. The target analytes were extracted with acetonitrile using ASE, eluted with ethyl acetate/cyclohexane (1:1), cleaned up by GPC. The detection of the target analytes was used GC-MS/MS with multi-reaction-monitor (MRM) mode. At the spiked levels of 0.010 μg/g and 0.100 μg/g, the average recoveries were from 78.2% to 93.6%, and the relative standard deviations (RSDs) were from 5.8% to 19.1% (n=5). The limits of detection were 2.0~8.0 ng/g. The method was simple, automated, reliable, accurate, sensitive and appropriate for the determination of 7 herbicide residues in tea.关键词
茶/除草剂农药残留/气相色谱-串联质谱Key words
tea/ herbicide residue/ gas chromatography-tandem mass分类
农业科技引用本文复制引用
陈红平,刘新,汪庆华,蒋迎..茶叶中7种除草剂农药残留气相色谱-串联质谱测定[J].茶叶科学,2011,31(4):283-288,6.基金项目
现代农业产业技术体系建设专项基金资助(nycytx-26) （nycytx-26）
