A review of the use of the potentiometric electronic tongue in the monitoring of environmental systems

This paper introduces electronic tongue systems for remote environmental monitoring applications. This new approach in the chemical sensor field consists of the use of an array of non-specific sensors coupled with a multivariate calibration tool which may form a node of a sensor network. In our work...

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Bibliographic Details
Published in:Environmental modelling & software : with environment data news 2010-09, Vol.25 (9), p.1023-1030
Main Authors: Mimendia, A., Gutiérrez, J.M., Leija, L., Hernández, P.R., Favari, L., Muñoz, R., del Valle, M.
Format: Article
Language:English
Subjects:
Arrays
Artificial neural networks
Computer programs
Electronic tongue
Electronic tongues
Environmental monitoring
Ion-selective electrodes
Mathematical models
Monitoring
Networks
Sensor array
Sensors
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Summary:This paper introduces electronic tongue systems for remote environmental monitoring applications. This new approach in the chemical sensor field consists of the use of an array of non-specific sensors coupled with a multivariate calibration tool which may form a node of a sensor network. In our work, the proposed arrays were made up of potentiometric sensors based on polymeric membranes, and the subsequent cross-response processing was based on a multilayer artificial neural network model. Two cases are described: the environmental monitoring of ammonium pollutant plus alkaline ions at different measuring sites in the states of Mexico and Hidalgo (Mexico), and the monitoring of heavy metals (Cu 2+, Pb 2+, Zn 2+ and Cd 2+) in open air waste streams and rivers heading down the Gulf of Mexico.
ISSN:1364-8152
DOI:10.1016/j.envsoft.2009.12.003