Determination of semimicro amounts of tellurium by electrodeposition

Electrodeposition of tellurium in micro or semimicro amounts can be achieved using copper or copper-plated platinum cathodes. Best results are obtained from electrolytic baths of approximately 2 M sulfuric acid, 0.4 M ammonium sulfate, 0.1 M sodium tartrate and 0.06 M sodium nitrate. Electrodeposition of tellurium can be carried out with an accuracy better than 1% at the 90% confidence level.