SPECIATION ANALYSIS OF ARSENIC IN BIOLOGICAL MATRICES BY AUTOMAT...

Courtesy Recent Science Inventory records from the EPA  Thu, 10/09/2008 - 14:44

Abstract Analyses of arsenic (As) species in tissues and body fluids of individuals chronically exposed to inorganic arsenic (iAs) provide essential information about the exposure level and pattern of iAs metabolism.

We have previously described an oxidation state-specific analysis of As species in biological matrices by hydride-generation atomic absorption spectrometry (HG-AAS), using cryotrapping (CT) for preconcentration and separation of arsines.

To improve performance and detection limits of the method, HG and CT steps are automated and a conventional flame-in-tube...

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