Fig. 2(a) Effects of pH on the anodic peak current observed for 150 nM concentration of Hg2+ ions, reduction potential -0.4 V, supporting electrolyte 0.1 M HCl.
Fig. 2(b) Effects of reduction potential on the anodic stripping voltammograms observed for 150 nM concentration of Hg2+ ions, supporting electrolyte 0.1 M HCl
Fig 2(c) Effects of preconcentration time on the anodic stripping voltammograms observed for 150 nM concentration of Hg2+ ions, reduction potential -0.4 V, supporting electrolyte 0.1 M HCl