Fig. 3From: Electrochemical behavior of anticancer drug 5-fluorouracil at carbon paste electrode and its analytical applicationInfluence of pH on the shape of anodic peak. pH (a) 3.0, (b) 4.2, (c) 5.0, (d) 6.0, (e) 7.0, (f) 8.0, (g) 9.0, (h) 10.0, and (i) 11.2. (A) Variation of peak potential with pH for 1.0 × 10−4 M 5-FU (B) Variation of peak current with pH for 1.0 × 10−4 M 5-FUBack to article page