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牛奶中拟除虫菊酯类农药残留检测——QuEChERS-气相色谱分析方法的研究与建立
引用本文:高晓昇,张艳,王松雪,滑蓉,张晓明.牛奶中拟除虫菊酯类农药残留检测——QuEChERS-气相色谱分析方法的研究与建立[J].中国奶牛,2010(8):56-60.
作者姓名:高晓昇  张艳  王松雪  滑蓉  张晓明
作者单位:1. 中国农业大学动物科技学院,北京,100193
2. 国家粮食局科学研究院,北京,100037
基金项目:国家奶牛产业技术体系 
摘    要:目前,牛奶中拟除虫菊酯类农药残留分析方法普遍存在前处理操作繁琐的问题,不适于大批量样品的检测。建立一种快速、简便、环保、高效,可用于大量牛奶及其制品中拟除虫菊酯类农药残留的检测方法是非常必要的。本研究采用改进的QuEChERS法进行样品前处理,以气相色谱-ECD检测器作为检测手段,建立了牛奶中8种拟除虫菊酯类农药的分析方法。试验结果表明,使用该方法检测牛奶中8种拟除虫菊酯农药,最低检出限在0.001~0.008mg/kg之间,样品加标回收率为65.09%~100.02%,RSD为2.96%~11.64%,符合食品中农药残留检测的要求。本方法准确、简便、快速、安全,可用于牛奶样品中拟除虫菊酯农药残留的快速定量检测。

关 键 词:牛奶  QuEChERS  拟除虫菊酯农药  快速检测

Determination of Pyrethoid Pesticide Residues in Milk by QuEChERS-Gas Chromatography
GAO Xiao-sheng,ZHANG Yan,WANG Song-xue,HUA Rong,ZHANG Xiao-ming.Determination of Pyrethoid Pesticide Residues in Milk by QuEChERS-Gas Chromatography[J].China Dairy Cattle,2010(8):56-60.
Authors:GAO Xiao-sheng  ZHANG Yan  WANG Song-xue  HUA Rong  ZHANG Xiao-ming
Institution:1.College of Animal Science and Technology, China Agrieuhural University, Beijing 100193; 2.Academy of State Administration of Grain, Beijing 100037)
Abstract:Presently most studies focusing on pyrethiod pesticides in milk have a common problem that sample processing is complicated, time-consuming and not suitable for large amounts of sample pre-treatment. It's very necessary to establish a rapid, simple, efficient and environmentally friendly method. In this study, the new QuEChERS method was chosen for sample processing, and GC-ECD was chosen as detecting technique, developing a rapid method to determine 8 pyrethiod pesticides in milk. Results are as followed:the method showed good recoveries (range from65.09 % to 100.02%) and repeatability (RSD from 2.96% to 11.64%) for all compounds, with detection limits ranging from 0.001mg/kg to 0.008mg/kg, which met the detection requirements of pesticide residues in food. The method is simple,fast,safe and can be used to analyze pyrethoid pesticide residues of milk.
Keywords:QuEChERS
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