CHENG Li, DONG Feng-shou, LIU Xin-gang, ZHENG Yong-quan, CHEN Wu-ying, WANG Chen-rui, WANG Xiang-jing. Simplified Method for Determination of Fungicide Prochloraz Residuesin Wheat Using QuEChERS and UPLC-MS/MS[J]. Chinese Journal of Pesticide Science, 2009, 11(3): 357-361.
    Citation: CHENG Li, DONG Feng-shou, LIU Xin-gang, ZHENG Yong-quan, CHEN Wu-ying, WANG Chen-rui, WANG Xiang-jing. Simplified Method for Determination of Fungicide Prochloraz Residuesin Wheat Using QuEChERS and UPLC-MS/MS[J]. Chinese Journal of Pesticide Science, 2009, 11(3): 357-361.

    Simplified Method for Determination of Fungicide Prochloraz Residuesin Wheat Using QuEChERS and UPLC-MS/MS

    • A simple and rapid method was developed for determining prochloraz residue in wheat.Prochloraz was extracted with acetonitrile and cleaned up with dispersive method on primary secondary amine,detected by ultra liquid chromatography-mass spectrometry under multiple reaction monitoring mode,and quantified by matrix-match standard solution.The correlation coefficient of the calibration curves was 0.999 4 within 0.001 mg/kg to 0.1 mg/kg.The mean recoveries of prochloraz in wheat were 91.8% ~98.3%,at three spiked levels (0.001,0.01 and 0.1 mg/kg).The relative standard deviations (RSD) were 3.7% ~7.0% and the limit of quantification (LOQ) of prochloraz in wheat was 0.000 1 mg/kg at the signal/noise (S/N) ratio of 10.
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