Research Article
Electrochemical Investigation of Catechol at Poly(niacinamide) Modified Carbon Paste Electrode: A Voltammetric Study
Figure 4
(a) Cyclic voltammograms for 0.2 mM CC at poly(niacinamide) MCPE in 0.2 M PBS of pH 7.4 at different scan rate (–; 0.025 Vs−1, 0.05 Vs−1, 0.075 Vs−1, 0.1 Vs−1, 0.125 Vs−1, 0.15 Vs−1, 0.175 Vs−1, and 0.2 Vs−1). (b) The graph of peak current () versus scan rate (). (c) The graph of peak current () versus square root of scan rate.
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