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

Figure 5

(a) Effect of the electropolymerization cycles in 5mM [Fe(CN)₆]^3-/4- containing 0.1M KCl solution. (b) CV responses obtained from GCE/Cu-NPs/PANI in the presence of 1mM nitrate as a function of scan rate ranging from 10 to 1000 mV/s in 0.1M Na₂SO₄ solution (pH=5).

(a)

(b)