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 7
Cyclic voltammograms of (a) 0.1 mM of several drugs: tramadol, cetirzine, aspirin, codeine, and AC on the surface of oppy/MWCNT/GCE, (b) mixture solution containing 1 mM of AA, AC, and codeine on the surface of bare GCE (solid line), CNT-GCE (dotted line), and oppy/MWCNT/GCE (dashed line). Supporting electrolyte was phosphate buffer solution of pH 7.0 and potential sweep rate was 100 mV s−1.
