Remote environmental monitoring employing a potentiometric electronic tongue

Manuel Gutiérrez, Juan Manuel Gutiérrez, Salvador Alegret, Lorenzo Leija, Pablo Rogelio Hernández, Liliana Favari, Roberto Muñoz, Manuel Del Valle

Research output: Contribution to journalArticleResearchpeer-review

20 Citations (Scopus)

Abstract

This work investigates the use of electronic tongues for environmental monitoring. Electronic tongues were based on arrays of potentiometric sensors plus a complex data processing by artificial neural networks and data transmission by radiofrequency. A first application, intended for a system simulating real conditions in surface water, performed a simultaneous monitoring of ammonium, potassium, sodium, chloride, and nitrate ions. The proposed system allowed us to assess the effect of natural biodegradation stages for these species. A second application was used to monitor concentrations of ammonium, potassium, and sodium in the 'Ignacio Ramírez' dam (Mexico). The electronic tongue used here allowed us to determine the content of the three cations in real water samples, although a high matrix effect was encountered for sodium determination. The implemented radio transmission worked robustly during all the experiments, thus demonstrating the viability of the proposed systems for automated remote applications. © 2008 Taylor & Francis.
Original languageEnglish
Pages (from-to)103-117
JournalInternational Journal of Environmental Analytical Chemistry
Volume88
Issue number2
DOIs
Publication statusPublished - 1 Feb 2008

Keywords

  • Artificial neural networks
  • Electronic tongue
  • Environmental monitoring
  • Potentiometric sensors
  • Sensor array

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