Reversed-phase liquid chromatographic column switching for the determination of N-methylcarbamates and some of their main metabolites in urine |
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Authors: | P. Parrilla V zquez, J. L. Martí nez Vidal,J. Martí nez Fern ndez |
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Affiliation: | P. Parrilla Vázquez, J. L. Martínez Vidal,J. Martínez Fernández |
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Abstract: | A column switching system for the determination of some polar pesticides and their main metabolites, such as aldicarb, aldicarb sulphoxide, aldicarb sulphone, carbofuran and 3-hydroxicarbofuran, in human urine has been developed. The limits of detection were between 0.3 and 1 μg/l. We used a simple solid-phase extraction with graphite carbon and a RPLC–LC analysis with UV detection yielding average recoveries between 84 and 110% (N=5) with RSD between 4 and 8%. |
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Keywords: | N-Methylcarbamates |
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