Potentiometric Electronic Tongue to Resolve Mixtures of Sulfide and Perchlorate Anions

Sensors

Deivy Wilson¹  Mohammed N. Abbas²  Abdel Latief A. Radwan² 

[1] Sensors and Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; E-Mail:;Analytical Laboratory, National Research Centre, Dokki, Cairo, Egypt; E-Mails:

关键词: electronic tongue;    ion-selective electrode;    artificial neural network;    sulfide;    perchlorate;    phtalocyanine ionophores;   

DOI  :  10.3390/s110303214

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.