毛细管电泳电化学检测对氧磷、甲基对硫磷、乙基对硫磷、扑灭松  

Determination of paraoxon, methyl parathion, ethyl parathion and fenitrothion by capillary electrophoresis by CE electrochemical detection

作　　者：王文雷[1] 赵明辉[2] 石敬华[1] 

机构地区：[1]山东省环境监测中心站,山东济南250013 [2]山东大学化学与化工学院,山东济南250100

出　　处：《化学工程师》2005年第8期26-28,共3页Chemical Engineer

摘　　要：用毛细管电泳电化学检测的方法对4种常见有机磷农药进行了分离检测,对缓冲液种类、pH值、离子浓度、胶束浓度、电极的检测电势等检测条件进行了最佳优化,结果表明:此方法对4种农药的质量检测限较气相色谱法低3～4个数量级,并将此方法用于地表水样品的检测.A method was developed to determine organophosphate pesticides with capillary electrophoresis by electrochemical detection. The conditions for separation and detection of a mixture of four pesticides, such as buffer pH and concentration, micellar concentration and detection electrode potential were investigated. Under the optimized conditions, four kinds of organophosphate pesticides were well separated in less than eleven minutes, There limits of detection （LODS） were low 10^-3 - 10^-4 than gas chromatorograph method, the method was applied to detect river water sample successfully.

关 键 词：毛细管电泳 电化学检测 有机磷农药 

分 类 号：O657.8[理学—分析化学]