Multiresidue determination of diazinon and ethion in pistachio nuts by use of matrix solid phase dispersion with a lanthanum silicate co-column and gas chromatography

• Autorzy: Husain S. W. , Kiarostami V. , Morrovati M. , Tagebakhsh M. R.
• Języki publikacji: EN

Abstrakty

EN

Diazinon and ethion in pistachio nuts have been analyzed by use of matrix solid-phase dispersion (MSPD) followed by gas chromatography with nitrogen-phosphorus detection (GC-NPD). The efficiency of different adsorbents (C18, cyano, phenyl, and amino) for MSPD of pistachio nuts was compared. Lanthanum silicate ion-exchanger was used as co-column material. Recoveries for C18-MSPD co-column lanthanum silicate were 95% for ethion and 94% for diazinon with relative standard deviations of 7-13% in the concentration range 0.5-4 mg kg-1. The limits of detection were 0.02 mg kg-1 for ethion and 0.035 mg kg-1 for diazinon; these were lower than the maximum residue limits (MRL) established by WHO/FAO. Thin-layer chromatography was performed on lanthanum silicate and lanthanum tungstate ion exchangers to ensure the pesticide residues were present in the final MSPD extract.

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2003
• Tom: No. 13
• Strony: 208--214
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Husain S. W.

• Department of Chemistry, Science and Research Campus, P.O. Box: 14515/775, Islamic Azad University, Tehran, Iran

autor

Kiarostami V.

• Department of Chemistry, Science and Research Campus, P.O. Box: 14515/775, Islamic Azad University, Tehran, Iran

autor

Morrovati M.

• Instrumental Analysis Laboratory, Plant Paste and Design Research Institute, Ministry of Agriculture Research Organization, Tehran, Iran

autor

Tagebakhsh M. R.

• 2Instrumental Analysis Laboratory, Plant Paste and Design Research Institute, Ministry of Agriculture Research Organization, Tehran, Iran

Bibliografia

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