Supercritical Fluid Extraction of Sulfonylurea Herbicides in Soil Samples
- 1 September 1994
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Analytical Chemistry
- Vol. 56 (2) , 109-117
- https://doi.org/10.1080/03067319408039799
Abstract
The application of supercritical fluid extraction (SFE) with supercritical CO2 to the analysis of 2 sulfonylurea herbicides in 4 soils is presented. Methanol and water are added to the soil samples as modifiers. After extraction, Chlorsulfuron and Metsulfuron methyl are measured by HPLC-UV at 220 nm. The recovery rates are good (>80%) for all types of the studied soils except for those with high organic carbon content (ca. 50%). According to the characteristics of the soils, recovery with SFE is similar or better than with liquid-solid extraction.Keywords
This publication has 6 references indexed in Scilit:
- Dégradation chimique ou microbiologique des sulfonylurées dans le sol. I. Cas du sulfbméturon méthyleWeed Research, 1992
- ANALYTICAL-SCALE SUPERCRITICAL FLUID EXTRACTIONAnalytical Chemistry, 1990
- Mode of action, crop selectivity, and soil relations of the sulfonylurea herbicidesPesticide Science, 1990
- Phytotoxicity and Adsorption of Chlorsulfuron as Affected by Soil PropertiesWeed Science, 1985
- Chlorsulfuron Adsorption and Degradation in SoilWeed Science, 1985
- Analysis of the herbicide chlorsulfuron in soil by liquid chromatographyJournal of Agricultural and Food Chemistry, 1982