Original scientific paper

Polarographic Determination of Ruthenium in Citrates and Tartrates Solutions

M. Branica ; Department of Physical Chemistry, Institute »Ruder Boskovic «, Zagreb , Croatia, Yugoslavia
Š. Mesarić ; Department of Physical Chemistry, Institute »Ruder Boskovic «, Zagreb , Croatia, Yugoslavia

Abstract

Polarographic methods are proposed for the determination of small amounts of ruthenium in two new supporting electrolytes: a. citric acid (0.3 M) and sodium hydroxide (0.15 M); b. tartaric acid (0.2 M), sodium hydroxide (0.1 M) and thymol (0.009 %). Determination of ruthenium is applicable in the concentration range from 4 to 120 micrograms of ruthenium per milliliter with a relative standard errors from 15 to 0.8 % in both electrolytes. Hydrochloric, sulfuric and perchloirc acids (up to 0.5 N) do not interfer, but in the presence of nitric acid (any traces of nitrites) polarographic determinations are impossible.

Keywords

Hrčak ID:

245625

URI

https://hrcak.srce.hr/245625

Publication date:

25.3.1958.

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