Overoxidized Polypyrrole/Sodium Dodecyl Sulfate/Single Wall Carbon Nanotubes Matrix for the Simultaneous Electrochemical Determination of Heavy Metal Ions by Adsorptive Stripping Voltammetry
Abstract:In this work, we report an overoxidized polypyrrole (oPPy)/single-wall carbon nanotubes (SWCNTs) matrix, electrochemically coated onto a glassy carbon electrode (GCE). This matrix was characterized by AFM, FTIR, and cyclic voltammetry. It is shown that the developed permslective matrix
allows the simultaneous quantification of multiple metal ions, including zinc, cadmium, and lead, using square wave anodic stripping voltammetry. The sensitivities of the oPPy/SWCNTs/GCE for Zn2+, Cd2+, and Pb2+ are respectivel… Show more
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