摘要
本文运用农药多残留分析中的一种简便、快速、价格低廉的分析方法—QuEchERS法.其采用一种新的样品前处理方法,从蔬菜中提取净化残留农药（包括11种有机磷农药）,运用GC/MS进行分析检测,根据有机磷农药种类差异,其最小检出限在5.6～18.2μg/kg之间,回收率在67.7%～105.3%之间,相对标准偏差不大于10.6%,实验表明本方法适用蔬菜中有机磷农药多残留分析.
This article used QuEchEBS method, known as to be quick, easy, cheap, effective, rugged and safe, to determinate 11 pesticides residues in vegetables.After extraction and cleanup, the samples were detected by GC/MS.The LOQ and average recovery ratio were 5.6 ～ 18.2μg/kg and 67.7% ～ 102.3% respectively,while RSD was less than 10.6% .The results show the QuEchERS method can be used for the determination of organophosphorus pesticide residues in vegetables.
出处
《中国测试技术》
2006年第3期132-133,共2页
CHINA MEASUREMENT & TESTING TECHNOLOGY
关键词
QuEchERS法
多残留分析
分散型固相萃取
QuEchEBS
Multiple pesticide residue analysis
Dispersive solid-phase extraction
