A method for the determination of 187 kinds of pesticides in dried persimmon by liquid chromatography-tandem mass spectrometry(LC-MS/MS)was established.The samples were extracted with acetonitrile containing 1%acetic acid,then purified with anhydrous magnesium sulfate,anhydrous sodium acetate,anhydrous sodium sulfate,N-propyl ethylenediamine(PSA)and C_(18).The separation of targeted compounds was performed on a ZORBAX Eclipse Plus-C_(18)column by gradient elution using 95%acetonitrile aqueous solution(organ...