FIELD: analytical methods. SUBSTANCE: method is applicable to determining copper in materials and environmental objects. Indigocarmine-containing analytical sample is oxidized with hydrogen peroxide in buffer solution at pH 2.9-3.2 in presence of at least 0.03 mole of tartaric acid. EFFECT: simplified and accelerated analysis. 4 dwg, 4 tbl, 4 ex
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Authors
Dates
1998-11-20—Published
1996-07-25—Filed