Electroanalytical Device for Cadmium Speciation in Waters. Part 2: Automated System Development and Cadmium Semicontinuous Monitoring

Olivier Zaouak (1) , Laurent Authier (1) , Cyril Cugnet (1) , Eric Normandin (1) , Daniel Champier (2) , Marc Rivaletto (2) , Martine Potin-Gautier (1)

1 LCABIE - Laboratoire de Chimie Analytique Bio-Inorganique et Environnement
2 LGE - Laboratoire de Génie Electrique

A full-automated electroanalytical device is presented here. It is composed of an electrochemically adapted automation module and a competitive screen-printed sensor modified ex situ by a very low quantity of mercury. The contribution of this automated apparatus to analyses is described in detail. Coupled with an UV-photolysis unit, it has permitted the rapid detection of both total and electrochemically accessible cadmium in solutions containing 10 mg L-1 of humic substances without addition of reagents. Semicontinuous monitoring of tap water doped with 5.3 μg L-1 of cadmium, in presence of traces of lead and copper, has been successfully achieved for 7 days. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Domaines: Energie électrique

Olivier Zaouak, Laurent Authier, Cyril Cugnet, Eric Normandin, Daniel Champier, et al.. Electroanalytical Device for Cadmium Speciation in Waters. Part 2: Automated System Development and Cadmium Semicontinuous Monitoring. Electroanalysis, 2010, 22 (11), pp.1159-1165. ⟨10.1002/elan.200900475⟩. ⟨hal-02014933⟩