Research Article
Synthesis and Voltammetric Determination of Pb(II) Using a ZIF-8-Based Electrode
Figure 6
(a) Anodic stripping current (Ip) of Pb(II) at different pHs and condition: [Pb(II)]: 500 ppb; [Bi(III)] = 300 ppb. (Ip was the mean value for successive measurements for four times); (b) effect of pH on Ip of anodic peak; (c) linear regression of Ep versus pH.
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