Free Access
Volume 27, Number 6, July/August 1999
Page(s) 544 - 548
Section Original articles
Analusis 27, 544-548 (1999)
DOI: 10.1051/analusis:1999132

Continuous measurement of copper concentration in aqueous solutions with highly changing physico-chimical parameters

P. Tisserand1, 2, E. Tisserand1, J.-L. Cécile2, P. Schweitzer1 and J. Mathieu1

1  Laboratoire d'Instrumentation Électronique de Nancy 1, Université Henri Poincaré, BP 239, 54506 Vandoeuvre-les-Nancy, France
2  Groupement pour l'Évaluation des Mesures et des Composants en Eau et Assainissement, rue Gabriel Péry, 54500 Vandoeuvre-les-Nancy, France

(Received April, 14, 1999; revised July, 15, 1999; accepted July, 20, 1999.)

Continuous measurement of heavy metals in waste water without sampling and without adding reagents is one of the main objectives of our work. We propose to adapt the potentiometric technique so as to know the concentration of copper in solutions that reproduce the variations of waste water (T, s, pCCu) through multiparameter measurement. We show that the measure can be extended to the hydroxyl complexation by introduceing the pH in Nernst's equation. The modelisation and the results are then discussed.

Key words: Ion Selective Electrode / Copper, heavy metals / water quality / continuous monitoring

© EDP Sciences, Wiley-VCH 1999