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

A. Mimendia, J. M. Gutiérrez, L. Leija, P. R. Hernández, L. Favari, R. Muñoz, M. del Valle

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70 Citations (Scopus)

Abstract

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 (Cu2+, Pb2+, Zn2+ and Cd2+) in open air waste streams and rivers heading down the Gulf of Mexico. © 2009 Elsevier Ltd.
Original languageEnglish
Pages (from-to)1023-1030
JournalEnvironmental Modelling and Software
Volume25
Issue number9
DOIs
Publication statusPublished - 1 Sep 2010

Keywords

  • Artificial neural networks
  • Electronic tongue
  • Environmental monitoring
  • Ion-selective electrodes
  • Sensor array

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