TY - JOUR ID - 39951 TI - Development of Carbon Paste Electrode/EDTA/Polymer Sensor for Heavy Metals Detection JO - Analytical and Bioanalytical Electrochemistry JA - ABEC LA - en SN - - AU - TOUZARA, Sakina AU - Amlil, Amina AU - Ennachete, Madiha AU - Smaini, Mohamed Amine AU - Chtaini, Abdelilah AD - Molecular Electrochemistry and Inorganic Materials Team, Beni Mellal Faculty of Science and Technology, Sultan Moulay Slimane University, Marocco Y1 - 2020 PY - 2020 VL - 12 IS - 5 SP - 644 EP - 652 KW - Atomic Force Microscopy KW - sensor KW - Cyclic voltammetry KW - EDTA KW - heavy metals DO - N2 - The method used to immobilize the polymer on the Disodium ethylenediamine tetraacetate (EDTA) modified carbon paste electrode (CPE/EDTA) has proved its effectiveness for the detection and chelation of heavy metals in aqueous solution. Its complex formation with Pb(II) was examined by square wave voltammetry and cyclic voltammetry. CPE/EDTA electrodes are predisposed to the phenomenon of dissolution due to several factors, such as pH, we thought to cover these electrodes with a selective polymer synthesized (9% of the polysulfone and 91% of the polyacrylonitrile) for remedy this problem. It was found that the CPE/EDTA/polymer electrode shows a better performance than the carbon paste electrode modified by EDTA molecular (CPE/EDTA). The polymer used protects the surface of the electrode while preserving its activity. These modified electrodes developed in this study allow simple, rapid and inexpensive identifi1cation of lead ions with 1.08×10-9mol/l of detection limit. The morphological study of polymer surface was examined by Atomic Force Microscopy (AFM). UR - https://www.abechem.com/article_39951.html L1 - https://www.abechem.com/article_39951_316c33369bc92f05b3688a8433a56409.pdf ER -