气质质联用法测定水产品中50种农药残留量

Yao-hua GAO,Bing LIU,Shuang TENG,Pei-hai LIU,Can SUN

Food Research and Development（2018）

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Abstract

建立气相色谱/串联三重四级杆质谱同时测定鲑鱼、对虾中50种农药残留的方法.对三重四级杆质谱(MS/MS)检测参数及样品前处理方式进行优化.样品经乙腈提取后,冷冻、离心,QuEChERS方法净化,采用气相色谱/串联三重四级杆质谱仪检测,50种农药在线性范围内均呈现良好的线性关系,线性系数大于0.99.本检测方法的检出限(LOD)为0.001 mg/kg～0.005 mg/kg,方法验证试验结果表明,该类化合物的平均回收率在65％～118％之间,相对标准偏差(RSD)在0.74％～12.3％之间.本方法重现性好,精密度高,操作简单,适用于鲑鱼、对虾等水产品中多种农药残留的检测.

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