Selective extraction of organochlorine and organophosphorus pesticides using a combined solid phase extraction-supercritical fluid extraction approach

Ian Barnabas, John Dean, Steven Hitchen, Susan Owen

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)

Abstract

Supercritical fluid extraction (SFE) of pesticides has been investigated for the possibility of selective extraction between organochlorine (OCPs) and organophosphorus (OPPs) compounds. Three OCPs and OPPs were trapped onto a C18 Empore® extraction disk prior to SFE with CO2 only and methanol-modified CO2 at various pressures and constant temperature. The results indicate that OCPs can be quantitatively extracted using CO2 only whereas OPPs require a modifier for extraction.
Original languageEnglish
Pages (from-to)261-267
JournalAnalytica Chimica Acta
Volume291
Issue number3
DOIs
Publication statusPublished - Jun 1994

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