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Determination of germanium(IV) in sulphide ores by differential pulse polarography in pyrogallol-sulfuric acid media

✍ Scribed by Julio César Aguilar; Josefina de Gyves

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
384 KB
Volume
306
Category
Article
ISSN
0003-2670

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✦ Synopsis

The evaluation of the polarographic response (dpp) of Ge(IV) in several sulfuric acid media containing pyrogallol allowed to establish optimum conditions for the reduction of this ion. In the media studied, the reduction of Ge(IV) provides a signal that can be used for quantitative analysis. This research led to a method for the determination of Ge(IV) in sulphide ores that involves separation of interferences by a liquid-liquid extraction technique. Using a static mercury drop electrode the method yielded a calculated detection limit of 3 X lo-' M.

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