A Simple, Fast, and Inexpensive Simultaneous Determination of Trace Bismuth(III) and Lead(II) in Water Samples by Adsorptive Stripping Voltammetry

Figure 2

The influence of accumulation potential on the 2 × 10⁻⁸ mol L⁻¹ Bi(III) (a) and 2 × 10⁻⁸ mol L⁻¹ Pb(II) (b) peak current. Concentration of cupferron 1 × 10⁻⁴ mol L⁻¹ and acetate buffer 0.1 mol L⁻¹ (pH = 4.5). Accumulation time 30 s.