Qualitative and quantitative electroanalysis of synthetic phenolic antioxidant mixtures in edible oils based on their acid-base properties

► A very simple electroanalytical method for antioxidants in edible oils is developed. ► Square wave voltammetry on Pt band and carbon fiber disk ultramicroelectrodes. ► Monitoring changes of voltammetric signals before and after additions of base. ► The method is useful for the analysis of synthetic antioxidants in edible oils.