Rеvuе des Energies Renouvelables
Volume 12, Numéro 1, Pages 69-75
2009-03-31

Characterisation Of Platinum Electrode Modified With Phosphate Rock For Cd2+ Ions Detection



Authors : Hamel A. . Morakchi K. . Guerfi K. . Louhi A. . Kherrat R. .

Abstract

In the present paper we report the characterization of platinum electrode modified with a polymeric membrane. The use of natural minerals such as phosphate rock (PR) from the mine of Djebel Onk (Algeria) was investigated as ionophore for Cd2+ ions detection. The impedance data were adjusted from 100 mHz to 100 kHz and at polarisation - 200 mV. The maximum exchange was obtained between pH 4 and 6. Low detection limit is about 10-5 M.

Keywords

Electrochemical sensors, Phosphate rock, Impedance spectroscopy, Ion exchange.

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