A high-performance liquid chromatographic assay of alpha-amanitin and beta-amanitin in human serum, urine, or stomach washings is described. Sample preparation involves a chemical step with deproteinization and organic solvent treatment, and a selective cleanup and concentration step on reversed-phase prepacked cartridges. Separations are performed on a reversed-phase analytical column under isocratic conditions with uv detection at 280 nm. The method allows the quantitation of alpha- and beta-amanitin separately with a detection limit of 10 ng/ml for both toxins.
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| http://dx.doi.org/10.1016/0003-2697(85)90474-9 | DOI Listing |
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