DETERMINATION OF ORGANOPHOSPHORUS AND TRIAZOLE PESTICIDES BY GAS CHROMATOGRAPHY AND APPLICATION TO VEGETABLE AND COMMERCIAL SAMPLES


Guducu H. E. , İNAM R., Aboul-Enein H. Y.

JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES, vol.34, no.19, pp.2473-2483, 2011 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 19
  • Publication Date: 2011
  • Doi Number: 10.1080/10826076.2011.591027
  • Journal Name: JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.2473-2483

Abstract

A multiresidue method using gas chromatography with electron-capture detection (ECD), nitrogen-phosphorus detection (NPD), or flame ionization detection (FID) has been developed for the determination of triazole residues such as triadimefon, penconazole, hexaconazole, diniconazole, and organophosphorus residues such as chlorpyrifos-methyl. The method has been successfully applied to the analysis of tomatoes and eggplant samples. The recoveries obtained from NPD detector for tomatoes and eggplants were in the range 62.0-109% and 66.0-104% with the relative standard deviation varied from 5.0 to 13.1% and 3.2 to 18.0%, respectively. The method was validated and applied for the determination of triazole and organophosphorus pesticides in agrochemical formulations within the recoveries of 96.3-107.2%.