Cyclic Voltammetric Investigation of Dopamine at Poly-(Gabapentin) Modified Carbon Paste Electrode

Figure 3

(a) Cyclic voltammogram of 5 × 10⁻⁵ M DA in 0.2 M phosphate buffer solution at different scan rate (a–g; 0.1 Vs⁻¹, 0.15 Vs⁻¹, 0.2 Vs⁻¹, 0.25 Vs⁻¹, 0.3 Vs⁻¹, 0.35 Vs⁻¹, and 0.4 Vs⁻¹). (b) Graph of current versus square root of scan rate.

(a)

(b)