FIELD: analytical methods.
SUBSTANCE: determination is accomplished against 1 M HNO3 with addition of 0.1 g KNO3 by inversion voltammetry technique wherein rhenium is concentrated on graphite electrode, after which precipitate is oxidized.
EFFECT: increased accuracy of determination by more than 2-3 orders of magnitude and reduced analysis time.
2 tbl, 2 ex
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