Spectroelectrochemical studies on the oxidation pathway of epinephrine

Oxidation of epinephrine at a gold electrode was studied in acidic solutions by a near normal incidence reflectance spectroelectrochemical (NNIRS) system. Also, cyclic voltammetric(CV) data were used to interpret the oxidation pathway of epinephrine. Some spectroscopic results are in good agreement with the previous reports at a carbon paste electrode. However, assignment of each peak in the CVs is not always in good agreement with the past findings, especially the formation of dehydrated form of leucoadrenochrome is not likely to occur under acidic conditions.