Determination of Pesticide Residues in Water and Plant Material by Gas and Thin-Layer Chromatography

Abstract

The isolation and determination of up to 21 different pesticide residues from fortified water and Carum caNi (L.) seeds is presented. Pesticides were extracted from water and seed samples by using liquid-liquid and solid-phase extraction methods. The suitability of HyperSep Retain solid-phase extraction columns for water analysis was evaluated. The water analysis recoveries of 70 to 120% were usually obtained, but the yields of atrazindesispropyl, 2,6- dichlorobensamide and dichlobenil were lower. It was observed that HyperSep Retain sorbent in some columns capture water. The first results indicated that HyperSep Retain columns are reusable. Pesticide residues from the fortified herbal samples were extracted by ethyl acetate using two different extracting procedures following cleanup on solid-phase extraction columns (ENV+) usually used in the analyses of pesticides in water. The recovery results indicated that ENV+ columns could be used for cleanup of plant extracts. To evaluate extraction efficiency different methods of thin layer chromatography were used for the determination of the analytes extracted from the fortified seeds.

Published in

Rapport / Sveriges lantbruksuniversitet, Miljöanalys
2003, number: 2003:14
Publisher: Institutionen för miljöanalys, Sveriges lantbruksuniversitet

SLU Authors

• No information found

UKÄ Subject classification

Analytical Chemistry

Permanent link to this page (URI)

https://res.slu.se/id/publ/132771