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We describe the application of square wave voltammetry at ultramicroelectrodes for the determination of natural antioxidants (α, δ, and γ tocopherols), and tert-butyl hydroxytoluene in edible vegetable oils.Tocopherol determinations were performed in benzene/ethanol (1:2)+0.1molL−1 H2SO4+oil samples at a carbon fiber disk ultramicroelectrode, and tert-butyl hydroxytoluene was determined in acetonitrile...
We have developed an electroanalytical method to quantify different isomers of tocopherols in edible vegetable oils. The method uses the square wave voltammetry on a carbon fiber disk ultramicroelectrode in benzene/ethanol+0.1molL −1 H 2 SO 4 .Because the oxidation peaks of these natural antioxidants show an important overlapping, we have used two chemometric tools to obtain...
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