Multiwalled Carbon Nanotubes (MWCNT) / Poly O-Cresophthalein Complexone Film (POCF) Modified Electrode for Determination of Cd (ll) Using Anodic Stripping Voltammetry

This work describes about the anodic stripping voltammetric determination of trace amount of cadmium ions using Multiwalled Carbon Nanotube / Poly O-Cresophthalein Complexone Film (MWCNT/POCF) modified electrode. The proposed modified electrode was prepared by electropolymerization of O-Cresophthalein Complexone over the MWCNT on Paraffin Impregnated Graphite Electrode (PIGE).The surface morphology of MWCNT/POCF modified electrode was characterized by Scanning Electron Microscope (SEM) and Square Wave Voltammetry (SWV). A linear range of 18µg/L to 332µg/L with a detection limit of 6.2µg/L was obtained for the determination of Cd (ll) using MWCNT/POCF modified electrode. The modified electrode was found to be environment friendly mercury free electrode for sensitive of determination of Cd (ll).