Study of Junction Carbon Paste Electrode / Indigo Carmine / Mercury (II): Application of the Law Cottrell
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064

Research Paper | Material Science and Engineering | Ivory Coast | Volume 5 Issue 1, January 2016

Study of Junction Carbon Paste Electrode / Indigo Carmine / Mercury (II): Application of the Law Cottrell

Ndri Seiny Roger, Coulibaly Mariame, Yao Nguessan Alfred, Bamba Drissa, Zoro Ellogne

Electrochemical detection of mercury (II) by the carbon paste electrode modified by indigo carmine in the differential pulse voltammetry is obtained by a complexation reaction. Complexation time, pH and temperature parameters which influence the formation of the complex were investigated. The formed Hg-IC complex is electro inactive. Its adsorption to the surface of the electrode causes a decreasing variation of the intensity of the anodic peak current versus time. Applying the Cottrell law of the faradaic and adsorption current has achieved the equivalent electrical circuit modelling all phenomena at the interface of the sensor.

Keywords: detection, mercury II, modified electrode, indigo carmine, Cottrell law

Edition: Volume 5 Issue 1, January 2016

Pages: 1300 - 1305

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Ndri Seiny Roger, Coulibaly Mariame, Yao Nguessan Alfred, Bamba Drissa, Zoro Ellogne, "Study of Junction Carbon Paste Electrode / Indigo Carmine / Mercury (II): Application of the Law Cottrell", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=NOV152996, Volume 5 Issue 1, January 2016, 1300 - 1305

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