On the theory of limiting currents. I. Polarographic limiting currents

Abstract

Abstract The theory of diffusion and limiting currents with the dropping cathode is critically examined. The expressions for the limiting currents at growing and steady drops are compared. The general theory of diffusion currents, i.e. the theory of the complete Polarographic wave, is based on an approximation method. The driving force and the mobility of the reducible ion are discussed. A better agreement between experiment and theory is obtained when the proper ionic mobilities are employed.