Abstract

Abstract The investigation of the anodic-stripping voltammetry of cadmium or thallous ions in a 0.1 m potassium nitrate solution was carried out by using the pushed-out mercury Drop Convection Electrode (cf. J. Suzuki and T. Ozaki, This Bulletin, 37, 230 (1964)). The metals were deposited on the mercury electrode by rotating the disk at 600—1200 rpm, and the stripping was performed by a linearly-varying potential method. The anodic-stripping peak current was proportional to the square roots of the rotating rate of the disk and of the voltage scanning rate, and to the bulk concentration of cadmium or thallous ions. Using the present stripping procedure, it was possible to determine thallous and cadmium ions at concentrations as low as 1×107 m with a mean error of about ±2%.

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