ఫార్మాస్యూటికా అనలిటికా ఆక్టా

నైరూప్య

Evaluation of Carbon Paste Electrodes Modified with Organic Molecules for the Analysis of Heavy Metals by Square Wave Voltammetry

Hambate Gomdje Valery, Thérèse Rosie Ngono, Hind Saâdane, Madiha Ennachete, Mostafa Khouili, Abdrrafia Hafid, Loura Benoît and Abdelilah Chtaini

Three organic molecules were used as modifiers of carbon paste electrodes (CPEs) for the analysis of different metals (Pb2+, Cd2+ and Cu2+) by using Square Wave Voltammetry (SWV) technique. The effect of the modified electrodes (MO-CPEs) on the electrochemical behavior has been shown. The MO-CPEs gives the more sensitivity. The detection limits obtained in all analysis approaching 10-8 mol/L.