Evaluation of Electrolytic Conductivity Detection for Gas-Liquid Chromatographic Screening of Some Organonitrogen Herbicides and Fungicides in Foods
- 1 July 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of AOAC INTERNATIONAL
- Vol. 60 (4) , 979-981
- https://doi.org/10.1093/jaoac/60.4.979
Abstract
Electrolytic conductivity detection for the gas-liquid chromatographic (GLC) screening of 15 organonitrogen herbicides and fungicides was investigated. Spiked samples of crop material were extracted with acetone and the filtered sample extracts were partitioned with methylene chloride-petroleum ether (1+1) followed by second and third extractions with methylene chloride. The combined organic extracts were evaporated to dryness and the residues were dissolved in hexane for cleanup on a 2% deactivated Fiorisil column. The pesticide fractions were determined directly by GLC. All pesticides could be detected at 0.1 ppm in the foods studied.This publication has 2 references indexed in Scilit:
- Confirmation of some organonitrogen herbicides and fungicides by chemical derivatization and gas chromatographyJournal of Agricultural and Food Chemistry, 1976
- Gas chromatographic separation of herbicides of major interest in Canada, with electrolytic conductivity detection in the nitrogen and chlorine modesJournal of Chromatography A, 1976