Optimization of simultaneous voltammetric detection of tocopherols at glassy carbon electrode in organic solvents

Abstract

In this paper, we have made attempts to simultaneously detect different forms of tocopherols using voltammetry in organic solvents. Experimental conditions such as selection of organic electrolyte solution, material of working electrode, effect of anionic, cationic and nonionic surfactants and parameters of square-wave voltammetry were optimized. An overlapping of corresponding oxidation peaks of tocopherols was observed at optimum working conditions, which needs to be resolved for future analytical applications.