Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry

Figure 9

Voltammograms of 10⁻⁷ mol·L⁻¹ AO in BR buffer depending on scan rate from 50 mV·s⁻¹ to 400 mV·s⁻¹ (1: 50 mV·s⁻¹, 2: 100 mV·s⁻¹, 3: 150 mV·s⁻¹, 4: 200 mV·s⁻¹, 5: 250 mV·s⁻¹, 6: 300 mV·s⁻¹, and 7: 400 mV·s⁻¹), with conditions 10⁻⁷ mol·L⁻¹ AO, pH = 9.0, t_acc = 60 s, and f = 50 Hz.