气相色谱法测定蔬菜中有机磷农药残留量  

Measurements of Organic Phosphorus Pesticides Residual Quantity in Vegetable by Using GC

作　　者：张静[1] 王蕾[1] 王趱[1] 

机构地区：[1]沈阳化工学院,辽宁沈阳110142

出　　处：《当代化工》2007年第2期206-208,共3页Contemporary Chemical Industry

基　　金：农业部"948"项目

摘　　要：用气相色谱法测定蔬菜中甲胺磷、甲拌磷、氧化乐果、乐果、甲基对硫磷、毒死蜱和对硫磷的残留量。对每种农药作3种不同浓度（0．05、0．1、0．5）mg·kg^-1添加回收率实验。结果表明，平均回收率在74．3％。115％之间，变异系数在18．6％以内，最小检测浓度在0．0172—0．102mg·kg^-1。A analysis method for determinating residues of Methamidophos, Phorate, Omethoate, Dimethoate, Methyl parathion, Chlorpyrifos and Parathion in vegetable by the gas chromatograp - hy was studied. All pesticides were added three kinds of densities （0.05 、0.1、0.5 ） mg· kg^-1 in recovery experiment. The average recoveries of the analytical method for the fortified ,samples in cucumber and bean were 74.3 % - 115 % ,with the coefficient of variation within 18.6 %. The minimum detection limits for seven kinds of carbamate pesticides were in range of 0.017 2- 0. 102 mg· kg^-1.

关 键 词：有机磷农药 残留量 气相色谱 

分 类 号：O657.71[理学—分析化学]