Abstract
Studies are reported of the polarography of iron and nickel in the presence of solochrome violet RS. It is shown that complexes with iron are formed at pH values in the region of 4.5 and 6.5. The former has a dye-iron combining ratio of 2∶1, while that at pH 6.5 is 4∶1. Simultaneous polarography of iron and aluminium in solochrome violet RS solution showed that at pH 3.5 distinct steps for both elements may be obtained, but they are not sufficiently separated for quantitative purposes.
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