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 language | English |
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Pages (from-to) | 261-267 |
Journal | Analytica Chimica Acta |
Volume | 291 |
Issue number | 3 |
DOIs | |
Publication status | Published - Jun 1994 |
Keywords
- Gas chromatography-mass spectrometry
- Pesticides
- Selective extraction
- Supercritical fluid extraction