Figure 7.
(A) DPVs of DA coexisted with 5-HT in the presence of 3 × 10−3 M AA, DA and 5-HT concentration (a–f): 1 × 10−5 M to 3 × 10−4 M; (B) The linear relationship between the DA concentration with the oxidation peak current; (C) The linear relationship between the 5-HT concentration with the oxidation peak current, respectively. Solution: pH 7.4 phosphate buffer.