凝胶渗透色谱净化-气相色谱-质谱法测定肉品中的甲氧滴滴涕  

Determination of Methoxychlor in Meat Using GPC-GC-MS

作　　者：吕建霞[1] 孙军[1] 刘永强[1] 张靖[1] 于金玲[1] 

机构地区：[1]潍坊出入境检验检疫局,山东潍坊261041

出　　处：《肉类研究》2011年第3期12-14,共3页Meat Research

基　　金：山东出入境检验检疫局科技计划项目(SK200926)

摘　　要：建立肉品中甲氧滴滴涕残留的气相色谱-质谱(GC-MS)分析方法。采用均质提取方法提取样品中的甲氧滴滴涕,经凝胶渗透色谱净化,浓缩定容后用GC-MS检测分析,外标法定量。样品添加水平为0.005、0.01、0.02mg/kg时,甲氧滴滴涕的回收率在82.8%～103.2%之间,方法检测限为0.001mg/kg。本方法操作简便、准确、灵敏度高,净化效果好,满足残留分析要求。A novel method has been developed to determine methoxychlor residue in meat using GC-MS. Methoxychlor residues in samples were extracted by means of homogenization and cleaned up by gel permeation chromatography （GPC）. Then the residues were determined by GC-MS and quantified by the external standard method. Recoveries for methoxychlor in blank meat samples spiked at 0.005, 0.01 mg/kg and 0.02 mg/kg respectively ranged from 82.8% to 103.2%. The limit of detection （LOD） of the method developed was 0.001 mg/kg. This method is simple, accurate, of high sensitivity and presents high cleanup effectiveness, thus meeting the requirements for the analysis of pesticide residues in meat.

关 键 词：凝胶渗透色谱 甲氧滴滴涕 气相色谱-质谱联用 肉品 

分 类 号：TS251.7[轻工技术与工程—农产品加工及贮藏工程]