饮用水中12种有机磷及氨基甲酸酯类农药残留量的气相色谱-质谱测定法  

Determination of Organophosphorus and Carbamate Pesticide Residues in Water by Gas Chromatography-Mass Spectrometry

作　　者：陈宗保[1] 刘林海[1] 叶青[1] 

机构地区：[1]上饶师范学院化学系,江西上饶334001

出　　处：《环境与健康杂志》2009年第2期156-158,共3页Journal of Environment and Health

基　　金：江西省普通高校重点实验室科技计划资助项目(赣教技字[2006]302号);上饶师范学院资助项目(200710)

摘　　要：目的建立饮用水中12种有机磷及氨基甲酸酯类农药残留量的气相色谱-质谱测定法。方法以二氯甲烷-石油醚(体积比为4∶1)为萃取剂进行萃取,采用气相色谱-质谱法同时测定了饮用水中12种有机磷和氨基甲酸酯类农药的含量。结果在0.01～1.0μg/ml内,12种农药的回归方程线性关系良好,相关系数均>0.997,平均回收率为76.0%～111.0%,RSD为5.20%～9.20%,以3倍信噪比计算检出限,敌敌畏、异丙威、灭害威、抗蚜威、马拉硫磷、禾草丹、倍硫磷、对硫磷、溴硫磷、除草通、灭螨蜢、三硫磷的检出限分别为0.009、0.003、0.008、0.001、0.003、0.003、0.0025、0.009、0.005、0.010、0.010、0.006μg/ml。结论该方法简便、快捷,结果准确,灵敏度高,适用于饮用水中12种有机磷和氨基甲酸酯类农药残留量的同时检测。Objective To establish a method for determination of organophosphorus and carbamate pesticide residues in water by GC-MS. Methods Twelve kinds of organophosphorus and carbamate pesticide residues were determined with GC-MS with methylenechloride and petroleum ether （4：1） as extraction solvent. Results The linear ranges of 12 kinds of pesticides were perfect in the range of 0.01-1.0μg/ml, r/〉 0.997,the average rates of recovery were 76.0%-111.0%,and RSD were 5.20%-9.20%, the lowest limit detection （S/N=3） of diehlorvos, ehinomethionate, parathion, bromophos, earbophenothion, fenthion, isoprocarb, pirimiearb, aminoearb, thiobencarb, pendimethalin, malathion was 0.009, 0.003, 0.008, 0.001, 0.003, 0.003, 0.0025, 0.009, 0.005, 0.010,0.010,0.006 μg/ml respectively. Conclusion This method is simple, rapid, sensitive and can be applied to the simultaneous determination of 12 kinds of organophosphorus and earbamate pesticides in the water.

关 键 词：水 色谱法 气相 质谱 有机磷农药 氨基甲酸酯类农药 残留量 

分 类 号：O657.7[理学—分析化学]