452629.fig.005
Figure 5: Differential pulse voltammograms for different concentrations of DA and PAR mixtures as (a) 1 + 0.5, (b) 3 + 1, (c) 5 + 1.5, (d) 10 + 2, (e) 25 + 3, (f) 40 + 15, (g) 90 + 45, (h) 140 + 90, (i) 220 + 140, (j) 290 + 200, (k) 360 + 230, (l) 440 + 260, and (m) 540 + 300, respectively, in which the first value is the concentration of DA in μM and the second value is the concentration of PAR in μM. Insets: (A) plot of peak currents as a function of DA concentration. (B) Plot of the peak currents as a function of PAR concentration.