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Speciation Analysis of Chromium in\= Environmental Water Samples

Dexun Chen

Abstract

Existent states and separation conditions of chromium species in environmental water samples were studied. A method for speciation analysis of chromium by ion exchange with DPC spectrophotometric determination was developed. The method has been applied to the determination of total, soluble, granular chromium, Cr(), inorganic, and organic Cr () in environmental water and drug samples. The recovery of standard addition in water sample is 92%97% and the results of Cr () in drug sample are in agreement with scalar.\=\=

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Key concepts: Chromium, Genetic algorithm, Environmental chemistry, Chemistry, Ion exchange, Analytical Chemistry (journal), Ion, Ecology