A novel impedimetric sensor for trace level detection of dimethyl sulfide (DMS)

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dc.contributor.authorIden, Hassan
dc.contributor.authorde Faria, Ricardo Adriano Dorledo
dc.contributor.authorHeneine, Luiz Guilherme Dias
dc.contributor.authorMatencio, Tulio
dc.contributor.authorMessaddeq, Younès [UNESP]
dc.contributor.institutionUniversité Laval
dc.contributor.institutionCDN Isotopes
dc.contributor.institutionUniversidade Federal de Minas Gerais (UFMG)
dc.contributor.institutionFundação Ezequiel Dias (FUNED)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T02:42:02Z
dc.date.available2020-12-12T02:42:02Z
dc.date.issued2020-07-01
dc.description.abstractAn easy and effective method for the preparation of a new impedimetric sensor used in the detection of dimethyl sulfide (DMS) at a nanomolar level is presented. The sensor was prepared in two steps from a commercially available screen-printed carbon electrode (SPCE): a simple activation of the SCPE using cyclic voltammetry followed by electroless plating of the working electrode surface with gold clusters. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) techniques confirmed the successful functionalization of the SPCE, revealing the presence of gold particles dispersed on the carbon matrix. Electrochemical impedance spectroscopy (EIS) was used to study the sensitivity of the sensor towards DMS dissolved in aqueous solution and simulated ocean water. Analyses were performed in less than 3 min, and the sensor showed linearity in a concentration range from 1.0 × 10−10 to 1.0 × 10−8 M with a limit of detection of 1.50 × 10−9 M and a limit of quantification of 2.27 × 10−9 M. To simulate the marine environment in which DMS is naturally present in nature, the impedance of the sensor was monitored by online EIS. Moreover, results indicated that, despite not linearly, the sensor is a promising tool to detect the analyte even at 1.0 × 10−11 M, presenting an increase of resistance of 13.5% in relation to its bare condition.en
dc.description.affiliationCenter for Optics Photonics and Lasers (COPL) Université Laval
dc.description.affiliationCDN Isotopes
dc.description.affiliationDepartment of Chemical Engineering Universidade Federal de Minas Gerais (UFMG)
dc.description.affiliationLaboratory of Applied Immunology Fundação Ezequiel Dias (FUNED)
dc.description.affiliationDepartment of Chemistry Universidade Federal de Minas Gerais (UFMG)
dc.description.affiliationInstitute of Chemistry UNESP
dc.description.affiliationUnespInstitute of Chemistry UNESP
dc.format.extent10398-10407
dc.identifierhttp://dx.doi.org/10.1007/s10854-020-03588-0
dc.identifier.citationJournal of Materials Science: Materials in Electronics, v. 31, n. 13, p. 10398-10407, 2020.
dc.identifier.doi10.1007/s10854-020-03588-0
dc.identifier.issn1573-482X
dc.identifier.issn0957-4522
dc.identifier.scopus2-s2.0-85085292605
dc.identifier.urihttp://hdl.handle.net/11449/201797
dc.language.isoeng
dc.relation.ispartofJournal of Materials Science: Materials in Electronics
dc.sourceScopus
dc.titleA novel impedimetric sensor for trace level detection of dimethyl sulfide (DMS)en
dc.typeArtigo
unesp.author.orcid0000-0002-7025-7042[2]

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