A new modified carbon-paste electrode
for electrochemical analysis
H. El Bakouri1*, A. Ouassini1, J. L. Hidalgo-Hidalgo-de-Cisneros2,
J. M. Palacios-Santander2, I. Naranjo-Rodríguez2, L. Cubillana-Aguilera2
1Department of Chemical Engineering, Faculty of Sciences and Technology,
University of Abdelmalek Essaadi, 90000 Tangier, Morocco.
2Department of Analytical Chemistry, Faculty of Sciences, University of Cadiz, 11510 Puerto Real, Cadiz, Spain
* Corresponding author. E-mail:firstname.lastname@example.org
Received : 07 January 2005; revised version accepted: 20 October 2005
This study demonstrates the utility of carbon paste electrode modified with C18 for the electrochemical determination of Cu(II) in aqueous medium by using Differential Pulse Anodic Stripping Voltammetry (DPASV). The electrode exhibits a linear response to Cu(II) over a wide concentration range. The fabrication process of the quoted modified electrode is very simple and fast, as well as its cleaning procedure. It has a high degree of repeatability of the measurements. The detection limit of this electrode determined in the range of 4 -9·10-4 mg/l is 4·10-5 mg/l.
Keywords:Octadecyl; Copper; Modified Carbon-Paste Electrode; DPASV.