The Use Of An E-tongue For Discriminating Ethanol/water Mixtures And Determination Of Their Water Content

dc.creatorde Queiroz
dc.creatorDP; Florentino
dc.creatorAD; Bruno
dc.creatorJC; da Silva
dc.creatorJHD; Riul
dc.creatorA; Giacometti
dc.creatorJA
dc.date2016
dc.date2016-12-06T18:30:39Z
dc.date2016-12-06T18:30:39Z
dc.date.accessioned2018-03-29T02:03:13Z
dc.date.available2018-03-29T02:03:13Z
dc.identifier
dc.identifierSensors And Actuators B: Chemical. ELSEVIER SCIENCE SA, n. 230, p. 566 - 570.
dc.identifier0925-4005
dc.identifierWOS:000374329300072
dc.identifier10.1016/j.snb.2016.02.080
dc.identifierhttp://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0925400516302295
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/320087
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1310853
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThis paper discusses the applicability of an electronic tongue (e-tongue) based on capacitance measurements to determine the water content in ethanol. The e-tongue consisted of an array of interdigitated electrodes coated with ultrathin films of gallium nitrate and titanium dioxide, which were robust against attack by ethanol. Principal Component Analysis (PCA) was used to treat the capacitance data for discriminating ethanol/water mixtures even in cases with very small water contents. Discrimination is easier if the water added to ethanol contains ions, as is the case of tap water or if NaCl is added to the mixtures. With this e-tongue we were able to quantify the water content through a linear relationship between the first principal component (PCl) and the added water to the biofuel. Therefore, we have proven to be possible to measure the water content precisely, which is one of the major problems in ethanol biofuel adulteration nowadays. (C) 2016 Elsevier B.V. All rights reserved.
dc.description230
dc.description
dc.description566
dc.description570
dc.descriptionFAPESP
dc.descriptionCAPES
dc.descriptionCNPQ
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description
dc.description
dc.description
dc.languageEnglish
dc.publisherELSEVIER SCIENCE SA
dc.publisherLAUSANNE
dc.relationSensors and Actuators B: Chemical
dc.rightsfechado
dc.sourceWOS
dc.subjectElectronic Tongue
dc.subjectEthanol Biofuel
dc.subjectEthano-water Mixture
dc.subjectPrincipal Component Analysis
dc.titleThe Use Of An E-tongue For Discriminating Ethanol/water Mixtures And Determination Of Their Water Content
dc.typeArtículos de revistas


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