Related Experiment Video
Updated: Feb 5, 2026

Reductive Electropolymerization of a Vinyl-containing Poly-pyridyl Complex on Glassy Carbon and Fluorine-doped Tin Oxide Electrodes
Published on: January 30, 2015
Electrochemical study of a glassy carbon electrode modified by poly-4-nitroaniline-reduced/murexide and its
C Ben Ali Hassine1, H Barhoumi1
1Laboratory of Interfaces and Advanced Materials (LIMA), FSM, Monastir 5000, Tunisia.
Abstract:
The electrochemical modification of a glassy carbon electrode using reduced poly-4 nitroaniline (P-4NA) and it's applicability for determination of metallic ions was performed in this study. The electrode modification was performed by cyclic voltammetry in the potential range between 0.9 V and 1.4 V vs Ag/Ag+ (in 10 mM AgNO3) at the scan rate of 100 mV/s by 50 cycles in non-aqueous media. The reduction of nitro groups on the P-4NA modified glassy carbon electrode surface was performed in the potential range between -0.1 V and -0.8 V vs Ag/AgCl(Sat. KCl) at a scan rate of 100 mV/s in 100 mM aqueous HCl solution. The reduced P-4NA glassy carbon surface was modified with the murexide. The affinity of the modified glassy carbon electrode with some metallic ions was investigated by electrochemical impedance spectroscopy method in phosphate buffer solution (pH = 5).
More Related Videos
Related Concept Videos
What is an Electrochemical Gradient?
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
Alkali Metals
Table 1: Properties of the alkali metals
Precipitation of Ions
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Standard Electrode Potentials
Bonding in Metals
The Carbon Cycle

