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Electronic tongue coupled to an electrochemical flow reactor for emerging organic contaminants real time monitoring

2019-12-02Artigo científico Acesso aberto
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dc.contributor.authorMagro, Cátia
dc.contributor.authorMateus, Eduardo P.
dc.contributor.authorPaz-Garcia, Juan M.
dc.contributor.authorSério, Susana
dc.contributor.authorRaposo, Maria
dc.contributor.authorRibeiro, Alexandra B.
dc.contributor.institutionCENSE - Centro de Investigação em Ambiente e Sustentabilidade
dc.contributor.institutionDCEA - Departamento de Ciências e Engenharia do Ambiente
dc.contributor.institutionDF – Departamento de Física
dc.contributor.institutionCeFITec – Centro de Física e Investigação Tecnológica
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2020-01-08T23:44:26Z
dc.date.available2020-01-08T23:44:26Z
dc.date.issued2019-12-02
dc.descriptionUID/AMB/04085/2019. UID/FIS/00068/2019. PTDC/FIS-NAN/0909/2014. SFRH/BD/114674/2016.
dc.description.abstractTriclosan, which is a bacteriostatic used in household items, has raised health concerns, because it might lead to antimicrobial resistance and endocrine disorders in organisms. The detection, identification, and monitoring of triclosan and its by-products (methyl triclosan, 2,4-Dichlorophenol and 2,4,6-Trichlorophenol) are a growing need in order to update current water treatments and enable the continuous supervision of the contamination plume. This work presents a customized electronic tongue prototype coupled to an electrochemical flow reactor, which aims to access the monitoring of triclosan and its derivative by-products in a real secondary effluent. An electronic tongue device, based on impedance measurements and polyethylenimine/poly(sodium 4-styrenesulfonate) layer-by-layer and TiO2, ZnO and TiO2/ZnO sputtering thin films, was developed and tested to track analyte degradation and allow for analyte detection and semiquantification. A degradation pathway trend was observable by means of principal component analysis, being the sample separation, according to sampling time, explained by 77% the total variance in the first two components. A semi-quantitative electronic tongue was attained for triclosan and methyl-triclosan. For 2,4-Dichlorophenol and 2,4,6-Trichlorophenol, the best results were achieved with only a single sensor. Finally, working as multi-analyte quantification devices, the electronic tongues could provide information regarding the degradation kinetic and concentrations ranges in a dynamic removal treatment.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent2520606
dc.identifier.doi10.3390/s19245349
dc.identifier.issn1424-8220
dc.identifier.otherPURE: 15953636
dc.identifier.otherPURE UUID: 26f1db41-30fa-4a99-917a-d8895bfc80d3
dc.identifier.otherScopus: 85076187178
dc.identifier.otherPubMed: 31817207
dc.identifier.otherORCID: /0000-0002-5606-3591/work/67177463
dc.identifier.urihttp://hdl.handle.net/10362/90931
dc.identifier.urlhttps://www.scopus.com/pages/publications/85076187178
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/778045/EU
dc.relationThinking rough towards sustainability
dc.subjectElectrochemical treatment
dc.subjectElectronic tongue
dc.subjectLayer-by-layer technique
dc.subjectReal time monitoring
dc.subjectSensors
dc.subjectSputtering technique
dc.subjectTriclosan
dc.subjectAnalytical Chemistry
dc.subjectBiochemistry
dc.subjectAtomic and Molecular Physics, and Optics
dc.subjectInstrumentation
dc.subjectElectrical and Electronic Engineering
dc.titleElectronic tongue coupled to an electrochemical flow reactor for emerging organic contaminants real time monitoringen
dc.typejournal article
degois.publication.issue24
degois.publication.titleSensors
degois.publication.volume19
dspace.entity.typePublication
oaire.awardNumber778045
oaire.awardTitleThinking rough towards sustainability
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/778045/EU
oaire.fundingStreamH2020
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccess
relation.isProjectOfPublication604e9ef6-96f6-4fcc-aadd-5fc6a1e7b13e
relation.isProjectOfPublication.latestForDiscovery604e9ef6-96f6-4fcc-aadd-5fc6a1e7b13e

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