牛奶中有机磷农药残留的气相色谱法测定  

Analysis of Organophosphate Pesticide Residues in Milk by Gas Chromatograph

作　　者：冷静[1] 邓斌[1] 李琦华[1] 杨舒黎[1] 苟潇[1] 毛华明[1] 

机构地区：[1]云南农业大学动物科学技术学院云南省动物营养与饲料科学重点实验室,昆明650201

出　　处：《中国奶牛》2011年第2期57-60,共4页China Dairy Cattle

基　　金：云南省重大科技攻关项目(2004NG04);科技部科技人员服务企业项目(2009GJF30034);云南省科技强省创新项目(2008LA008)

摘　　要：提出同时测定牛奶中敌百虫、甲胺磷、敌敌畏、马拉硫磷、倍硫磷五种有机磷农药残留的检测方法。在选定的色谱条件下,添加浓度在0.5～10.0μg/mL之间时5种农药的检测限分别为0.031μg/mL、0.013μg/mL、0.023μg/mL、0.019μg/mL和0.014μg/mL,回收率范围分别达81.0%～85.5%、84.5%～89.4%、79.0%～81.8%、77.3%～82.5%和77.9%～89.5%,变异系数在0.29%～3.96%之间。本方法对牛奶中有机磷农药残留的检测分析准确可靠。Five kinds（Trichlorfon,Methamidophos,Dichlorvos,Malathion and Fenthion） of organophosphate pesticide residues in milk were detected by gas chromatograph（GC）.With the selected chromatographic conditions,the lowest detection limit of five kinds of organophosphate pesticide residues were 0.031μg/mL,0.013μg/mL,0.023μg/mL,0.019μg/mL and 0.014μg/mL,respectively,within the linear concentration ranging of 0.5～10.0μm/mL.The recovery（n=3） of five kinds of organophosphate pesticide were 81.0%～85.5%,84.5%～89.4%,79.0%～81.8%,77.3%～82.5% and 77.9%～89.5%,respectively,and the relative standard deviations were 0.29%～3.96%.The method is effective and accurate for determining organophosphate pesticide residues in milk.

关 键 词：气相色谱 有机磷农药残留 牛奶 

分 类 号：TS252.1[轻工技术与工程—农产品加工及贮藏工程]