Figure 3From: Application of a modified graphene nanosheet paste electrode for voltammetric determination of methyldopa in urine and pharmaceutical formulationLSVs of 2,7-BFGPE in 0.1 M PBS (pH 7.0) containing 20.0 μM methyldopa at various scan rates. Numbers 1 to 7 correspond to 2, 5, 10, 25, 50, 75, and 100 mV s−1, respectively. Insets: Variation of (A) anodic peak current vs. ν1/2 and (B) normalized current (Ip/ν1/2) vs. ν.Back to article page