A Comparative Electrochemical Behaviour Study and Analytical Detection of the p-Nitrophenol Using Silver Solid Amalgam, Mercury, and Silver Electrodes

Figure 2

(a) Square wave voltammograms for 1.05 × 10⁻⁴ moL L⁻¹ 4-NP, using a 0.1 moL L⁻¹ BR buffer solution at different pH values and 𝑓=100 s⁻¹, 𝑎=50 mV, and Δ𝐸_s=2 mV for the AgSAE, and (b) relationships between the pH values and the peak currents (right 𝑦-axis) and potentials (left 𝑦-axis).

(a)

(b)