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投稿时间：2017-07-19
投稿时间：2017-07-19
中文摘要: 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。
中文关键词: 气相色谱/串联三重四级杆质谱 鲑鱼 对虾 农药残留
Abstract:A multiresidue analytical method for 50 pesticide residues in salmon and prawn were established by gas chromatography/triple quadrupole mass spectrometry（GC/MS/MS）.The triple quadrupole mass spectrometry（MS/MS）detection parameters and sample pretreatment method were optimized.The samples were extracted by acetonitrile，freezing，centrifuged，and purified by QuEChERS and detected by gas chromatography/triple quadrupole mass spectrometry （GC/MS/MS）.The 50 pesticides in linear range were shown good linear relationship，and the linear coefficient was higher than 0.99.The detection limit of this test method （LOD）was 0.001 mg/kg-0.005 mg/kg，and the experimental results of methods verified showed that the recoveries were between 65%-118%and relative standard deviations（RSD）were between 0.74%-12.3%.The method has good reproducibility，high precision，simple operation，therefore，it is suitable for the detection of a variety of pesticide residues in salmon，prawn and other aquatic products.
文章编号：201803024 中图分类号： 文献标志码：
基金项目:国家质量监督检验检疫总局科技项目（2016IK206）；山东检验检疫局科技项目（SK201619、SK201761）
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