Determination of Total Mercury in Solid Samples by Anodic Stripping Voltammetry

Figure 2

Cyclic voltammograms of 0.1 mg l⁻¹ Hg²⁺ in HCl 0.05 mol⁻¹, deposition potential −0.5 V, sweep rate 0.1 V s⁻¹, and voltage step 6 mV: (1) deposition time 0 s; (2) deposition time 30 s; (3) deposition time 60 s.