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Losses of metabolically incorporated selenium in common digestion procedures for biological material
H J Robberecht1, R E Van Grieken, P A Van Den Bosch
1Departments of Chemistry, University of Antwerp (U.I.A.), Universiteitsplein 1, B-2610 Wilrijk, Belgium.
Abstract:
Two common procedures for wet destruction of biological materials for subsequent determination of selenium have been investigated. Rat organs and biological fluids were endogenously labelled with (75)Se to monitor losses during the procedures. Addition of nitric and perchloric acids with gradual heating up to 210 degrees seemed to be the best method: at this temperature the labelled selenium was still recovered quantitatively, and the destruction was fast and efficient.
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