Voltammetric Determination of Acetaminophen in the Presence of Codeine and Ascorbic Acid at Layer-by-Layer MWCNT/Hydroquinone Sulfonic Acid-Overoxidized Polypyrrole Modified Glassy Carbon Electrode
Figure 3
Cyclic voltammograms of various electrodes; bare GCE (—), CNT-GCE (), and oppy/MWCNT/GCE (- - -). (a) 0.1 mM AC and (b) buffer solution. Potential sweep rate was 100 mV s−1 and supporting electrolyte was 0.1 M phosphate buffer solution of pH 7.0.