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Sensors 2011, 11(3), 3214-3226; doi:10.3390/s110303214

Potentiometric Electronic Tongue to Resolve Mixtures of Sulfide and Perchlorate Anions

1
Sensors and Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
2
Analytical Laboratory, National Research Centre, Dokki, Cairo, Egypt
*
Author to whom correspondence should be addressed.
Received: 11 January 2011 / Revised: 24 February 2011 / Accepted: 10 March 2011 / Published: 16 March 2011
(This article belongs to the Special Issue Bioinspired Sensor Systems)
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Abstract

This work describes the use of an array of potentiometric sensors and an artificial neural network response model to determine perchlorate and sulfide ions in polluted waters, by what is known as an electronic tongue. Sensors used have been all-solid-state PVC membrane selective electrodes, where their ionophores were different metal-phtalocyanine complexes with specific and anion generic responses. The study case illustrates the potential use of electronic tongues in the quantification of mixtures when interfering effects need to be counterbalanced: relative errors in determination of individual ions can be decreased typically from 25% to less than 5%, if compared to the use of a single proposed ion-selective electrode. View Full-Text
Keywords: electronic tongue; ion-selective electrode; artificial neural network; sulfide; perchlorate; phtalocyanine ionophores electronic tongue; ion-selective electrode; artificial neural network; sulfide; perchlorate; phtalocyanine ionophores
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Wilson, D.; Abbas, M.N.; Radwan, A.L.A.; Valle, M. Potentiometric Electronic Tongue to Resolve Mixtures of Sulfide and Perchlorate Anions. Sensors 2011, 11, 3214-3226.

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