毛细管电泳法测定青菜中敌百虫的残留量  

Determination of trichlorfon in vegetables by capillary eletrophoresis

作　　者：黄宝美[1] 郑妍鹏[1] 李学谦[2] 杨冰仪[1] 莫金垣[1] 

机构地区：[1]中山大学化学与化学工程学院,广州510275 [2]广东省职业病防治院,广州510300

出　　处：《分析试验室》2004年第3期1-3,共3页Chinese Journal of Analysis Laboratory

基　　金：广东省自然科学基金(001237)

摘　　要：建立了一种测定青菜中有机磷农药敌百虫的方法,样品以二氯甲烷提取,活性炭脱叶绿素,毛细管电泳法检测,最低检出限为2×10-6mol L,敌百虫浓度在5×10-5～2×10-6mol L之间,呈现良好的线性关系,r=0.9914,样品加标回收率为90%～102%。A method for determination of trichlorfon in vegetables by capillary eletrophoresis was established. Sample was extracted by dichloromethane, and chlorophyll was absorbed by active carbon. Calibration curve was linear over the range from 5×10^(-5) to 2×10^(-6) mol/L, with a detection limit of 2×10^(-6) mol/L for trichlorton. The recovery of sampled ranges from 90%～102%.

关 键 词：青菜 敌百虫 农药残留 检测方法 毛细管电泳法 有机磷杀虫剂 

分 类 号：R155.54[医药卫生—营养与食品卫生学] S482.33[医药卫生—公共卫生与预防医学]