Figure 7

(A) DPV curves of EE2 at Pd/g-C₃N₄-CNTs/GCE in 0.1 M PBS (pH 10.5) containing different concentrations of EE2 (a-j: 0, 2, 5, 20, 30, 55, 75, 100, 120 and 150 µM); (B) The linear relationship between the peak current (Ip_a) and EE2 concentrations.