Electrochemical Oxidation Profile of Anthocyanin Keracyanin on Glassy and Screen-Printed Carbon Electrodes

A study of keracyanin chloride (KC) electrochemical behavior in an aqueous buffer solution using screen-printed carbon electrodes (SPCEs) and glassy (GCEs) was performed. Cyclic voltammetry (CV) square-wave (SWV) were used to analyze the response KC under studied conditions. clear redox wave observed for KC, primarily due oxidation catechol 3′,4′-dihydroxyl group its ring B, with a minor from hydroxyl groups A. Compared GCEs, modified SPCEs resulted two-fold amplification signal KC. Using as working electrode could provide high sensitivity quantification ability gauge significantly lower detection limits.