Advanced Electronic Tongue Concept
Martin G. Buehler1, Gregory M. Kuhlman1 , Didier Keymeulen1, and Samuel P. Kounaves2
1. Jet Propulsion Laboratory
2. Department of Chemistry. Tufts University
This effort, directed at developing a sensor for evaluating water quality, is based on electrochemical techniques that detect and identify ions in solution. This paper discusses the use of Cyclic Voltammetry (CV), corrosion measurements, and Anodic Stripping Voltammetry (ASV) to measure three marker ions Cu, Fe, and Zn using Electronic Tongue 1. Use of genetic algorithms are suggested as an approach to facilitate the search for optimum measurement conditions. In addition, the possibility of changing the physical conditions of the sample chamber is discussed as a way of increasing the sensorís apparent sensitivity of and confidence in the measurements.