A sensitive and selective method for the simultaneous determination of trace amounts of indium and aluminum by adsorptive stripping voltammetry was developed using Eriochrome blue black R [1-(2-hydroxy-1-naphthylazo)-2-naphthol- 4-sulfonic acid sodium salt, EBBR] as selective complexing agent on the multi-walled carbon nanotubes (MWCNTs) modified electrode. In a single scan, both metals gave peaks that were distinctly separated by 0.67 V allowing their determination in the presence of each other. Optimal analytical conditions were found to be: ...
