Author, as appears in the article.: Gil, Luis; Garcia-Breijo, Eduardo; Ibanez, Javier; Labrador, Roberto H.; Llobet, Eduard; Martinez-Manez, Ramon; Soto, Juan;
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Llobet Valero, Eduard
Keywords: Water discrimination Thick-film technology Oxide ph electrode Metal electrodes Electronic tongue
Abstract: An electronic tongue for the qualitative analysis of aqueous solutions of salts has been developed. The following set of electrodes was used: RuO 2, Ag, and Cu in thick-film technology and Au, Pb, Zn and Ni as small bars of the corresponding metal. The response of the designed electronic tongue was tested on a family of samples containing pure salt and complex mixtures. The electrodes were used as potentiometric un-specific sensors and the e.m.f. of each electrode in contact with a certain aqueous solution was used as input signal for a PCA analysis. The study showed that the set of electrodes were capable to discriminate between aqueous solutions of salts basically by their different content in anions and cations (the anions SO42-, Cl-, PO4H2-, CO 3H-, NO3- and cations Na+ and K+ were studied). In order to better analyze the basis for the discrimination power shown by the electronic tongue, a quantitative analysis was also envisaged. A fair estimation of the concentrations of the different ions in the solutions studied appeared to be possible using this electronic tongue design. © 2006 by MDPI.
Thematic Areas: Zootecnia / recursos pesqueiros Química Medicine (miscellaneous) Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Linguística e literatura Letras / linguística Interdisciplinar Instruments & instrumentation Instrumentation Information systems Geografía Geociências Farmacia Engineering, electrical & electronic Engenharias iv Engenharias iii Engenharias ii Engenharias i Electrochemistry Electrical and electronic engineering Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, analytical Biotecnología Biodiversidade Biochemistry Atomic and molecular physics, and optics Astronomia / física Arquitetura, urbanismo e design Analytical chemistry
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1424-8220
Author's mail: eduard.llobet@urv.cat
Author identifier: 0000-0001-6164-4342
Record's date: 2023-02-18
Papper version: info:eu-repo/semantics/publishedVersion
Papper original source: Sensors. 6 (9): 1128-1138
APA: Gil, Luis; Garcia-Breijo, Eduardo; Ibanez, Javier; Labrador, Roberto H.; Llobet, Eduard; Martinez-Manez, Ramon; Soto, Juan; (2006). Electronic tongue for qualitative analysis of aqueous solutions of salts using thick-film technology and metal electrodes. Sensors, 6(9), 1128-1138. DOI: 10.3390/s6091128
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2006
Publication Type: Journal Publications
Repositori URV