Cloud point extraction of napropamide and thiabendazole from water and soil |
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Authors: | Gerda Stangl Reinhard Niessner |
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Affiliation: | (1) Institute of Hydrochemistry, Technical University of Munich, Marchioninistrasse 17, D-81377 Munich, Federal Republic of Germany |
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Abstract: | The micellar extraction and enrichment of napropamide and thiabendazole using Genapol X 80 is described. Combined with their quantification by fluorescence, detection limits below 0.2 g/l with recovery rates of up to 95% were achieved. The recovery could be improved by lowering the extraction temperature and purificaton of the surfactants. This extraction method has been applied to the isolation and preconcentration of napropamide from standard soils. Experimental parameters affecting the recovery rates were examined. |
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Keywords: | micellar extraction fluorescence detection napropamide thiabendazole soil |
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