Supercritical Fluid Extraction of Organochlorine Pesticides from Soil
- 1 April 1995
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Analytical Chemistry
- Vol. 59 (2-4) , 91-96
- https://doi.org/10.1080/03067319508041319
Abstract
A supercritical fluid extraction (SFE) method was developed for the extraction of 21 organochlorine (OC) pesticides from soil using dichloromethane as cosolvent and magnesium sulfate as drying agent. Average recoveries of spiked OCs from six different soils generally ranged from 70 to 95%, with an average replicate precision of ± 13%. For the extraction of two soils containing “native” OCs, the SFE method gave generally similar or higher concentrations compared to Soxhlet extraction. The precision of replicate analyses of native OCs using SFE and Soxhlet extraction was ± 0.009 and ± 0.007 ug/g, with 24 and 13 degrees of freedom respectively.Keywords
This publication has 4 references indexed in Scilit:
- Comparison of supercritical fluid extraction with classical sonication and Soxhlet extractions for selected pesticidesAnalytical Chemistry, 1992
- A multiple sample extraction and on-line system for the analysis of chlorinated compoundsChemosphere, 1991
- Role of entrainers in supercritical fluid extraction of chlorinated aromatics from soilsChemosphere, 1991
- Supercritical Fluid Extraction and Its Application to Environmental AnalysisJournal of Chromatographic Science, 1990