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  • Title: [Simultaneous determination of pesticide residues in agricultural products by LC-MS/MS].
    Author: Watanabe M, Ueno E, Inoue T, Ohno H, Ikai Y, Morishita T, Oshima H, Hayashi R.
    Journal: Shokuhin Eiseigaku Zasshi; 2013; 54(1):14-24. PubMed ID: 23470870.
    Abstract:
    A method for the simultaneous determination of multiple pesticide residues in agricultural products was developed by liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS). The sample was extracted with acetonitrile. Co-extractives were removed by GPC/graphitized carbon column SPE, and silica gel/PSA cartridge column SPE. Pesticides in the test solution were determined by LC-MS/MS using scheduled MRM. Recoveries of 124 pesticides from spinach, brown rice, soybean, orange and tomato were tested at the level of 0.1 µg/g, and those of 121 pesticides ranged from 70 to 120% (RSD≤15%). Pesticide residues in 239 agricultural products were investigated by this method, and residues of 49 pesticides were detected in 98 agricultural products.
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