Rapid Detection of 36 Pesticide Residues in Peanut by Ultra High Performance Liquid Chromatography-Tandem Mass Spectrometry
  
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KeyWord:pesticide residues  peanut  enhanced matrix removal  ultra high performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS)
  
AuthorInstitution
LI Ling-yun,WU Hua,XU Xiao-min,LIN Huan,HUANG Xiao-dong,ZHENG Shu-ning,LIU Xin-yan,XU Dong-hui 1.中国农业科学院蔬菜花卉研究所,农业部蔬菜质量安全控制重点实验室,农业部园艺作物生物学与种质创制重点实验室;2.安捷伦科技中国有限公司
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Abstract:
      A multiresidue analytical method was developed for the rapid detection of 36 pesticides in peanut using ultra high performance liquid chromatography-tandem mass spectrometric technique(UHPLC-MS/MS).Peanut samples were extracted with acetonitrile,and then cleaned up with QuEChERS EMR-Lipid.The extract was detected by UHPLC-MS/MS.The positive ion mode and multiple reaction monitoring(MRM) mode were used to identify and quantify 36 pesticide residues in peanut.All pesticides had good linearity with correlation coefficients above 0.994.The average recoveries of the 36 pesticides ranged from 70.4% to 119% with relative standard deviations(RSDs) of 1.3%-19.4% at spiked levels of 0.005,0.01,0.10 mg/kg.The quantitation limits of this method were in the range of 0.002 5-0.05 mg/kg. With the advantages of simplicity,rapidness,sensitivity and good purifying effect,the method was suitable for the rapid determination of pesticide residues in peanut.
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