Research Article

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

Figure 1

The influence of cupferron concentration on the 2 × 10−8 mol L−1 Bi(III) (a) and 2 × 10−8 mol L−1 Pb(II) (b) peak current. Accumulation potential −0.05 V and accumulation time 30 s. pH acetate buffer equal to 4.5.