FIELD: analytical chemistry, more particularly determination of total chromium ((CrIII and CrVI)) in fish breeding water reservoirs. SUBSTANCE: method comprises concentration of chromium buy evaporation and treatment which eliminates effect of impurities which interferes with photometric determination of chromium with respect to reaction with diphenyl carbazine. EFFECT: more efficient determination method. 3 ex
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Authors
Dates
1999-09-10—Published
1997-12-15—Filed