Determination of iron in biological material by substoichiometric isotopic-dilution analysis.
Iron is determined in biological material by wet oxidation, in the presence of (59)Fe tracer, extraction of iron(III) chloride into isopropyl methyl ketone, stripping with nitric acid, and substoichiometric separation of the Fe-EDTA complex on a cation-exchanger. The precision is good and the method has been applied to analysis of standard kale and blood.
Gundersen
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Institutt for Atomenergi Isotope Laboratories Kjeller, Norway.
Steinnes
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