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Dispersion of multi-walled carbon nanotubes in [BMIM]PF 6 for electrochemical sensing of acetaminophen

2018-03Journal article Open access
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dc.contributor.authorGomes, Rayane N.
dc.contributor.authorSousa, Camila P.
dc.contributor.authorCasciano, Paulo N.S.
dc.contributor.authorRibeiro, Francisco Wirley P.
dc.contributor.authorMorais, Simone
dc.contributor.authorLima-Neto, Pedro de
dc.contributor.authorCorreia, Adriana N.
dc.date.accessioned2020-01-24T12:24:01Z
dc.date.available2020-01-24T12:24:01Z
dc.date.issued2018-03
dc.description.abstractThe influence of functionalized multi-walled carbon nanotubes (fMWCNT) in the presence of 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM]PF6) in different ratios was investigated on the acetaminophen (ACOP) electrochemical determination. The electrochemical behavior of the ACOP exhibited a pair of well-defined redox peaks, suggesting that the reversibility of ACOP was significantly improved in comparison to irreversible oxidation peak on bare GCE. The redox process was controlled by adsorption, involves two electrons and the value of apparent rate constant (ks) was equal to 14.7 s-1 ± 3.6 s-1. The analytical curves were obtained for concentrations of ACOP ranging from 0.3 to 3.0 μmol L-1. The values of the detection limit were calculated from SWV and found to be 6.73 × 10-8 mol L-1. The proposed electrochemical sensor exhibited good stability and reproducibility and was applied for ACOP determination in tablets (Tylenol® and Tylenol®DC) with satisfactory results.pt_PT
dc.description.sponsorshipThe authors gratefully acknowledge funding provided by the following Brazilian agencies: CNPq-INCT (Proc. 573925/2008-9 and 573548/2008-0), CAPES/Funcap (2133/2012/Proc. 23038.007973/2012-90), CNPq-PVE (Proc. 400223/2014-7 and 303596/2014-7), PRONEX/FUNCAP (Proc. PR2-0101-00030.01.00/15) and CNPq (Proc. 302801/2014-6). R.N. Gomes thanks CAPES and C.P. Sousa thanks CAPES-PNPD for their grants. The authors also are grateful to the Central Analítica-UFC/CT-INFRA/MCTI-SISNANO/Pró-Equipamentos CAPES for technical support and Prof. Pierre Basílio Almeida Fechine and MsC. Davino Machado Andrade Neto for Zeta potential analysis.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.msec.2018.03.016pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/15374
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0928493117308202?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectAcetaminophenpt_PT
dc.subjectElectrochemical Techniquespt_PT
dc.subjectImidazolespt_PT
dc.subjectNanotubespt_PT
dc.subjectCarbonpt_PT
dc.titleDispersion of multi-walled carbon nanotubes in [BMIM]PF 6 for electrochemical sensing of acetaminophenpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage156pt_PT
oaire.citation.startPage148pt_PT
oaire.citation.titleMaterials Science and Engineering: Cpt_PT
oaire.citation.volume88pt_PT
person.familyNameMorais
person.givenNameSimone
person.identifier1598822
person.identifier.ciencia-idB111-BBFB-F200
person.identifier.orcid0000-0001-6433-5801
person.identifier.scopus-author-id7007053747
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication7a9c7d63-a6c7-4159-b12d-b049b8c5c8f9
relation.isAuthorOfPublication.latestForDiscovery7a9c7d63-a6c7-4159-b12d-b049b8c5c8f9

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