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  • Title: [Multiresidue analysis of pesticides in agricultural products by GC/MS, GC-ECD and GC-FTD using acetonitrile extraction and clean-up with mini-columns].
    Author: Kondo H, Amakawa E, Sato H, Aoyagi Y, Yasuda K.
    Journal: Shokuhin Eiseigaku Zasshi; 2003 Jun; 44(3):161-7. PubMed ID: 12968471.
    Abstract:
    An analytical method was developed for determination of organochlorine, pyrethroid and nitrogen-containing pesticide residues in agricultural products by GC/MS, GC-ECD and GC-FTD. Pesticides were extracted with acetonitrile, and the organic layer was cleaned up on C18 and ENVI-Carb/LC-NH2 cartridges. Pesticides were determined by GC/MS, GC-ECD and GC-FTD. Detection limits of pesticides by GC/MS and GC were below 1-30 ng/g and 1-3 ng/g, respectively. Recoveries of 27 out of 53 pesticides determined by GC/MS and 47 out of 53 determined by GC were 70-120%. This method was useful for the multiresidue analysis of pesticides in agricultural products. Pesticide residues in 81 domestic crops were investigated from April 2001 to March 2002. Residues of 31 pesticides were detected from 21 crops.
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