| Issue |
E3S Web of Conferences
Volume 1, 2013
Proceedings of the 16th International Conference on Heavy Metals in the Environment
|
|
|---|---|---|
| Article Number | 41035 | |
| Number of page(s) | 3 | |
| Section | Addendum | |
| DOI | https://doi.org/10.1051/e3sconf/20130141035 | |
| Published online | 22 July 2014 | |
Graphite electrode modified with Indigo Carmine for Cu(II) ions detection
1 Ecole Normale Supérieure, Laboratoire des Sciences Physiques Fondamentales et Appliquées, 08 BP 10 Abidjan, CÔTE D’IVOIRE
2 Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering, Department of Physical Chemistry, 11, Arany Janos St., RO-400028 Cluj-Napoca, ROMANIA
An electrochemical method for Cu(II) determination, based on its reaction with indigo carmine (IC) in alkaline medium and differential pulse voltammetry performed at graphite electrode, was elaborated. The experimental parameters affecting the Cu(II) - IC complex formation (reaction time and pH) were optimized. The linear range of the calibration curve, obtaining by representing the IC oxidation current (Eappl = 0.175 V vs. Ag/AgCl,KClsat) versus the Cu(II) concentration (pH 10), was from 10 μM up to 70 μM Cu (II) and the detection limit was 4.74 μM.
Key words: Cu(II) / indigo carmine / differential pulse voltammetry
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.