Using Electrode Made of Carbon Nanotubes and Bismuth Oxide for the Determination of Metal Concentration by Anodic Stripping Voltammetry

Figure 1

Effect of the electrode diameters at a modified CPE with 5% Bi₂O₃ (w/w) in the supporting electrolyte mixture of 0.1 M KI and acetate buffer. Conditions: E_dep = −1.2 V; t_dep = 120 s; ΔE = 50 mV·s⁻¹; speed = 15 mV·s⁻¹.