Enantioselective, Potentiometric Carbon Paste Electrodes Based on C 60 Derivatives as Chiral Selectors for the Enantioanalysis of S‐Clenbuterol.

Three enantioselective, potentiometric carbon paste electrodes (EPCPEs) based on carbon paste impregnated with (1,2‐methanofullerene C60)‐61‐carboxylic acid (I), diethyl (1,2‐methanofullerene C60)‐61‐61‐dicarboxylate (II), and tert‐butyl (1,2‐methanofullerene C60)‐61‐carboxylic acid (III) are reported. Response characteristics showed that the proposed electrodes could be reliably used in the assay of S‐clenbuterol raw material and in serum samples. The surfaces of the electrodes are stable and easily renewable by simply polishing on an alumina paper. [ABSTRACT FROM AUTHOR]