Study of electrochemical oxidation of N-acetyl-epsilon-aminocaproic acid by chronoamperometry

The electrochemical oxidation of N-acetyl-epsilon-aminocaproic acid in methanol containing small amounts of water (1% vol) has been studied by chronoamperometry. The influences of carboxylate anion and free acid concentrations and the step potential upon the electrode processes have been analysed. An increase of the current with the enhancement of the step potential and anion concentration has been noticed. The dependencies j-t(1/2) have been calculated. Their slope, corresponding to the carboxylate discharge, have been used for determining the diffusion coefficient of the N-acetyl-epsilon-aminocaproate.