Monitoring wastewater treatment using voltammetric electronic tongues

Abstract

In the early 1990s, the design and preparation of new control and quantification systems called Electronic Noses and Tongues became popular. The common denominator of these is the use of an array comprising a significant number of sensors (potentiometric, voltammetric, mass, optical, etc.) which, when conveniently grouped and using chemometric techniques, allow us to obtain qualitative, and even quantitative information on certain samples. One of the most interesting aspects of these systems is their capacity as classification techniques to distinguish and group products or complex mixtures based on their physicochemical similarity.