Research Article

Inexpensive Bismuth-Film Electrode Supported on Pencil-Lead Graphite for Determination of Pb(II) and Cd(II) Ions by Anodic Stripping Voltammetry

Figure 4

Pareto chart to evaluate the peaks area for Cd(II) (a) and Pb(II) (b), where CBi (A) and td (C).
(a)
(b)