摘要
建立了植物酶膜萃取 气相色谱分析水体中痕量有机磷农药的方法 .实验表明 ,选用精面粉作为酶源并用纯水萃取所得的植物酶最为合适 .乐果、对硫磷和甲基对硫磷三种有机磷农药的检测限为 0 1 μg·l- 1;多次测定三种农药的加标回收率均达70 %以上 .
A method for analysis of trace organophosphorus pesticides in water with plant enzyme membrane extraction-gas chromatography has been developed.The enzyme extracted from refined wheat flour with distilled water was selected for the experiment.The determination limit was as low as 0.1 μg·l -1 .The recoveries for dimethoate,parathion and methyl parathion were all over 70%.
出处
《环境化学》
CAS
CSCD
北大核心
2002年第3期296-300,共5页
Environmental Chemistry
基金
福建省自然科学基金 (D0 0 2 0 0 0 2 )资助项目
关键词
有机磷农药
植物酶
膜萃取
气相色谱
水质监测
organophosphorus pesticide,plant enzyme,membrane,gas chromatography.
