Semi-circular sweep voltammetry. Bio-analytical applications

A novel voltammetric method applying a semi-circular potential sweep is applied to the simultaneous electroanalytical determination of solutions containing two components with similar oxidation potentials which precludes their resolution using conventional methods including linear sweep, square wave and pulse voltammetries. Three such biologically important mixtures, ascorbic acid/acetaminophen, glucose/ethanol hydroquinone/catechol were studied, analytical developed voltammetry shown give notable advantages over other voltammetries in terms signal sensitivity detection. Favourable accuracy was obtained electrodes either simple or no modification established detection ranges.