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    SONG Xin, HANG Xueyu, WANG Qin, WANG Lu, FENG Xiaoqing, WANG Dandan, LU Juan. Determination of Five Insecticide Residues In Tea by GC-MS/MS[J]. Journal of Environmental Hygiene, 2019, 9(6): 602-608. DOI: 10.13421/j.cnki.hjwsxzz.2019.06.016
    Citation: SONG Xin, HANG Xueyu, WANG Qin, WANG Lu, FENG Xiaoqing, WANG Dandan, LU Juan. Determination of Five Insecticide Residues In Tea by GC-MS/MS[J]. Journal of Environmental Hygiene, 2019, 9(6): 602-608. DOI: 10.13421/j.cnki.hjwsxzz.2019.06.016
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    Determination of Five Insecticide Residues In Tea by GC-MS/MS

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      • Abstract
    • Objectives A GC-MS/MS method for the quantitative determination of 5 insecticide residues in tea was developed.
      Methods The samples were extracted by acetonitrile and purified by the Quick Easy Cheep Effective Ruqqed and Safe (QuEchE-RS) method. The pooled evaluate was qualitatively and quantitatively determined by tandem mass spectrometry under multi-reaction monitoring (MRM) mode.
      Results Under the optimum conditions, the limit of detection (LOD) was in the ranges of (0.02~0.1)μg/kg (S/N=3) with a standard deviation of 1.2%~5.8%, and the recoveries were 74.3%~111.2%.
      Conclusions This method simplifies the pretreatment operation, shortens analysis time and provides good selectivity and high sensitivity for the determination of insecticide residues in teas.
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