食品科学 ›› 2011, Vol. 32 ›› Issue (10): 167-170.doi: 10.7506/spkx1002-6630-201110039

• 分析检测 • 上一篇    下一篇

基质固相分散-气相色谱法测定小麦中五种拟除虫菊酯类农药残留

范会平,高海军,符锋,王钊娣   

  1. 1.河南农业大学食品科学技术学院 2.河南省粮油饲料产品质量监督检验站
  • 出版日期:2011-05-25 发布日期:2011-04-08

Determination of Pyrethroid Pesticides Multi-residues in Wheat by Matrix Solid-phase Dispersion and gas Chromatography

FAN Hui-ping1,GAO Hai-jun2,FU Feng2,WANG Zhao-di1   

  1. 1. College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; 2. Henan Station for Supervision and Inspection of Grain, Oil and Feed Product Quality, Zhengzhou 450008, China
  • Online:2011-05-25 Published:2011-04-08

摘要: 建立小麦样品中5种拟除虫菊酯类农药残留同时进行测定的方法。以弗罗里硅土基质分散剂对小麦样品进行前处理,用气相色谱-电子捕获检测器测定,考察基质分散剂、洗脱剂和样品填料比对农药残留测定的影响。结果表明:5种拟除虫菊酯类农药的平均回收率均在85.5%~97.6%之间;其结果(n=5)的相对标准偏差(RSD)最大值为8.4%。这表明该方法是一种经济、快速、准确、重现性好的检测方法。

关键词: 小麦, 基质固相分散, 气相色谱, 拟除虫菊酯, 农药残留

Abstract: A rapid method to determine 5 pyrethroid pesticide residues in wheat was established through optimizing the absorbent, elute, and sample to absorbent ratio. Wheat sample was treated by the matrix solid-phase dispersion (MSPD) technique using Florisil as absorbent. 5 pyrethroid pesticides were analyzed by gas chromatography with electron capture detector. The mean recoveries of 5 pyrethroid pesticides were ranged from 85.5% to 97.6% and the maximum RSD was 8.4%. This method is cost-saving, rapid, accurate, sensitive and can therefore be applied for simultaneous determination of pesticide residues in wheat.

Key words: matrix solid-phase dispersion (MSPD), gas chromatography (GC), wheat, pyrethroid, pesticides residue

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