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dc.contributor.authorCunha Silva, Hugo 
dc.contributor.authorArcos Martínez, Julia 
dc.date.accessioned2020-06-17T13:46:47Z
dc.date.available2020-06-17T13:46:47Z
dc.date.issued2019-03
dc.identifier.issn0925-4005
dc.identifier.urihttp://hdl.handle.net/10259/5346
dc.description.abstractThe demand for bromide determination has increased over recent years. Sources of bromide contamination can be found in brines from hydraulic fracturing, pesticides and brominated polymers. Widely used in different applications, the bromide anion is present in the composition of several compounds. In this paper, we present a new selective voltammetric method for bromide determination, based on a screen-printed carbon electrode (SPCE) modified with rhodium nanoparticles (Rh-Nps), that is used as a sensing platform. The modification of the electrode surface with Rh-Nps and the presence of chloride in the sample, improved device performance, increasing the sensitivity of the Rh/SPCE-based sensor for bromide determination. The proposed sensor is simple to manufacture, easy to operate, and it offers a fast and accurate analysis. A single drop of the sample on the sensor is sufficient for the determination of bromide through measurement of voltammetric cathodic peaks, generated after a previous anodic stripping step. This disposable sensor offers a detection limit of 39 μM, with a calibration range up to 40 mM, and a sensitivity of 23.28 μA/mM. Its application to real-life samples evidenced recovery values close to 100%, demonstrating the powerful analytical performance of the proposed method.en
dc.description.sponsorshipSpanish Ministry of Science and Innovation (MICINN), Ministry of Economy and Competitiveness (MINECO) and the European Regional Development Fund (FEDER) (TEC20013-40561-P and MUSSEL RTC-2015-4077-2). Hugo Cunha-Silva would like to acknowledge funding from the Spanish Ministry of Economy (BES-2014-068214)es
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofSensors and Actuators B: Chemical. 2019, V. 282, p. 603-608es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectBromidees
dc.subjectRhodium nanoparticlesen
dc.subjectCathodic stripping voltammetryen
dc.subjectScreen-printed electroden
dc.subject.otherQuímica analíticaes
dc.subject.otherChemistry, Analyticen
dc.titleA disposable rhodium nanoparticle-modified screen-printed sensor for direct determination of bromide anionsen
dc.typeinfo:eu-repo/semantics/article
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.relation.publisherversionhttps://doi.org/10.1016/j.snb.2018.11.108
dc.identifier.doi10.1016/j.snb.2018.11.108
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/MUSSEL RTC-2015-4077-2
dc.relation.projectIDinfo:eu-repo/grantAgreement/MICINN/TEC20013-40561-P
dc.journal.titleSensors and Actuators B: Chemicales
dc.volume.number282es
dc.page.initial603es
dc.page.final608es
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersion


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