Inverse voltammetry of antimony with triphenylmethane dyes.
A method is suggested for the determination of traces of antimony by inverse voltammetry of the solid phases formed with triphenylmethane dyes (Crystal Violet, Methyl Violet and Malachite Green) as the precipitants. The authors have studied the effect of concentration, adsorption and oxidation of the triphenylmethane dyes, potential and time of pre-electrolysis, and concentration of antimony(III) and some other elements on the polarogram shape and stripping current. A method for determining antimony traces in chromic salts is described as an example.
Brainina
K Z
KZ
Sverdlovsk Institute of National Economy, Sverdlovsk 26, U.S.S.R.
Tchernyshova
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AB