The Zbinden method for the micro-estimation of copper after preliminary deposition of the metal by electrolysis

Research paper by B. Elema

Indexed on: 01 Mar '47Published on: 01 Mar '47Published in: Antonie van Leeuwenhoek


Zbinden's method for estimating micro quantities of electrolytically separated copper by reversal of current has been investigated. Though the theoretical basis of the method proved to be more intricate than was to be expected fromZbinden's papers, standardization of the experimental conditions resulted in the development of a simple method for the determination of from 10–100μg of copper. This method is very well adapted to routine work and may be carried out by untrained or hardly trained personnel.Without doubt essentially the same procedure may be used for the estimation of greater quantities of copper. In that case standardization at a higher amperage of the dissolving current seems advisable.