SPE-GC/MS法测定水中有机磷和氨基甲酸酯农药  

Study on method of organic phosphorus and carbamate pesticides in water using SPE and GC/MS

作　　者：杨元[1] 高玲[1] 景露[1] 谯斌宗 谭颖 

机构地区：[1]成都市疾病预防控制中心,四川成都610041 [2]成都市食品药品检验中心,四川成都610045 [3]简阳市疾病预防控制中心,四川简阳641400

出　　处：《中国测试》2009年第2期86-89,共4页China Measurement & Test

基　　金：四川省医学重点实验室、成都市医学重点实验室建设基金资助.

摘　　要：采用固相萃取(SPE)技术,对水样中20种有机磷类、氨基甲酸酯类农药进行提取、净化、浓缩前处理,优选了固相萃取小柱填料及萃取、净化条件。优化了气相色谱/质谱(GC/MS)仪器工作参数,建立了水样中20种农药的SPE-GC/MS分析方法。针对不同农药,本法回收率在90.83%～105.0%之间,测定精密度RSD在3.20%～12.52%之间,SCAN检测模式的检出限在0.000 3 mg/L～0.003 mg/L之间,SIM检测模式的检出限在0.000 2 mg/L～0.002 2 mg/L之间。本法简便、快速、灵敏、可靠性强。A method for analysis of 20 kinds of organic phosphorus and carbamate pesticides in drinking water using solid phase extraction （SPE） and gas chromatography-mass spectrometry （GC/MS） is suggested. These pesticides had been extracted, purified and pre-coneentrated with solid phase extraction（SPE） technology, and the optimal column packing materials, extraction and purification conditions for SPE, and the working parameters of GC-MS were investigated. The experimental results indicate that the spiked recoveries and precision （RSD%） are 90.83%-105.0% and 3.20%-12.52% respectively. The detection limits for Scan and SIM are 0.000 3 mg/L-0.003 mg/L and 0.O002mg/L-0.0022mg/L. The established method is simple, rapid, sensitive and reliability.

关 键 词：水 农药残留 气相色谱/质谱技术 固相萃取 有机磷农药 氨基甲酸酯农药 

分 类 号：TQ453.23[化学工程—农药化工] X824[环境科学与工程—环境工程]