超声提取-气相色谱质谱法测定土壤中的几种有机氯农药  

Ultrasonic Extraction-GC/MS Determination of Organochlorine Pesticides and in Agricultural Soil

作　　者：郭彦军[1] 

机构地区：[1]石家庄市农产品质量检测中心,石家庄050021

出　　处：《现代科学仪器》2012年第3期110-112,共3页Modern Scientific Instruments

摘　　要：有机氯农药是一类全球性质的环境持久性污染物。此类化合物具有"三致"作用和生物蓄积性,最终通过食物链危害人类的健康。本文研究建立了土壤中几种有机氯农药的测定方法:正己烷:丙酮(V:V=1:1)为提取液,经超声萃取,自填装固相萃取柱净化,气相色谱质谱法测定。结果显示,回收率在73.1～107.8%之间,RSD在2.6～10.7%之间,检出限为0.31～1.00ng/g,适合土壤样品中有机氯农药的快速测定。Organochlorine pesticide is a kind of global environment persistent pollutants. Such compound has ＂carcinogenicity-mutagenicity-teratogenicity＂ function and biological accumula- tion. Eventually, it can harm human health through the food. A method to determine several types of organochlorine pesticides in soil samples was established in this paper. Samples were extracted with hexane： acetone （V： V = 1：1） by ultrasonic extraction, purified by self- filled solid phase extraction column and determined by GC/MS. The results showed that the recovery was in 73.1 107.8%, RSD was in 2.6 - 10.7%, and the detection limit was in 0.31-1.00ng/g. It is suitable for rapid determination of organochlorine pesticides in soil samples.

关 键 词：土壤 有机氯农药 气相色谱质谱法 

分 类 号：O657.63[理学—分析化学] X833[理学—化学]