气相色谱-质谱法测定食品中残留的艾氏剂和狄氏剂  

Determination of Aldrin and Dieldrin residue in food by gas chromatography-mass spectrometry

作　　者：庞艳华[1] 胡晓静[1] 孙兴权[1] 李军[1] 李一尘[1] 

机构地区：[1]辽宁出入境检验检疫局,辽宁大连116001

出　　处：《辽宁师范大学学报（自然科学版）》2011年第4期508-512,共5页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家认证认可监督委员会标准制(修)订项目(20073730-T-424)

摘　　要：建立了一种测定食品中艾氏剂和狄氏剂残留量的气相色谱-质谱方法.样品中的艾氏剂和狄氏剂经丙酮-正己烷混合溶剂均质提取,凝胶层析柱结合弗罗里硅土固相萃取小柱净化,气相色谱-质谱选择离子方法进行测定,外标法定量.实验结果表明:样品中加入5～200μg/kg浓度水平的艾氏剂和狄氏剂,回收率在79.8%～106.2%之间,相对标准偏差小于7.17%(RSD,n=10).本方法线性响应良好,提取效率高,干扰少,可用于粮谷、蔬菜、水果等植物产品以及肉、鱼等动物产品中艾氏剂和狄氏剂残留量的测定.A method was established for the determination of Aldrin and Dieldrin residue in foods by gas chromatography-mass spectrometry（GC-MS）.The samples were extracted with acetone and hex-ane,and purified by gel permeation chromatograp and florisil solid phase extraction.The external standard method was adopted for the determination by GC-MS with selected ion m onitoring mode（SIM）.Tests of recovery were made by addition of standard Aldrin and Dieldrin to food samples at the concentration levels in the range of 5～200μg/kg,and the results of recovery were between 79.8% and 106.2%with relative standard deviations less than 7.17%（n=10）.The results indicate the meth-od has the advantage of good linearity,high extraction efficiency and less interference,and can be ap-plied to routine analysis and quality control in vegetable and animal ptoducts.

关 键 词：气相色谱-质谱 艾氏剂 狄氏剂 食品 

分 类 号：O657.7[理学—分析化学]