Ion-Imprinted Electrochemical Sensor Based on Copper Nanoparticles-Polyaniline Matrix for Nitrate Detection

Figure 7

Cyclic voltammograms (a), (b) Randles-Sevcik plots of CV peak current vs. square root of the scan rate and Nyquist plots (c) recorded in 5.10⁻³M [Fe (CN)₆]^-3/-4 and 0.1M KCl for GCE (A), GCE/Cu-NPs (B), GCE/Cu-NPs/PANI (C), NIP-GCE/CNPs/PANI (D), and IIP-GCE/Cu-NPs/PANI (E).

(a)

(b)

(c)