Optimization of working conditions in voltammetric simultaneous determination of retinyl acetate and α-tocopheryl acetate

Abstract

This scientific study describes a comparison of various working electrode materials and organic solvents in simultaneous voltammetry determination of retinyl acetate (or retinyl palmitate) and α- tocopheryl acetate based on their anodic oxidation using square wave voltammetry. It has been found that the glassy carbon is the electrode material of choice providing the most favourable current responses and well developed peak(s) in 99.7% acetone with 0.1 mol L-1 LiClO4. It can be assumed that anodic oxidation of these two analysts could be utilized to develop a simple and rapid simultaneous voltammetry method for determination in cosmetic products.