A new electrochemical platform based on carbon black paste electrode modified with α-cyclodextrin and hierarchical porous carbon used for the simultaneous determination of dipyrone and codeine

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dc.contributor.authorWong, Ademar [UNESP]
dc.contributor.authorRiojas, Andy Cardenas
dc.contributor.authorBaena-Moncada, Angélica M.
dc.contributor.authorSotomayor, Maria D.P.T. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionToxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM)
dc.contributor.institutionUniversidad Nacional de Ingeniería
dc.date.accessioned2021-06-25T10:52:36Z
dc.date.available2021-06-25T10:52:36Z
dc.date.issued2021-05-01
dc.description.abstractThe present study reports the simultaneous determination of dipyrone and codeine by a simple, fast and low-cost method using carbon black paste electrode (CBPE) modified with α-cyclodextrin (CD) and hierarchical porous carbon (HPC). Using optimum conditions, the CD-HPC/CBPE sensor proposed in this study presented excellent electrochemical catalysis. Based on square wave voltammetry (SWV) analysis, linear concentration ranges of 0.46 to 35 µmol L−1 and 0.5 to 38 µmol L−1 were obtained for dipyrone and codeine, respectively, with nanomolar limits of detection for both analytes. The proposed sensor exhibited good stability, satisfactory repeatability and high sensibility in the determination of the analytes of interest. The application of the sensor in real samples was found to be successful, with recovery rates ranging from 96 to 106%. The method proposed in this study was found to be reliable for the simultaneous detection of dipyrone and codeine in different matrices.en
dc.description.affiliationDepartment of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP)
dc.description.affiliationNational Institute for Detection of Alternative Technologies Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM)
dc.description.affiliationLaboratorio de Investigación de Electroquímica Aplicada Facultad de Ciencias Universidad Nacional de Ingeniería, Av. Tupac Amaru 210
dc.description.affiliationUnespDepartment of Analytical Chemistry Institute of Chemistry State University of São Paulo (UNESP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2014/50945-4
dc.description.sponsorshipIdFAPESP: 2019/00677-7
dc.description.sponsorshipIdCNPq: 408050/2018-7
dc.description.sponsorshipIdCNPq: 465571/2014-0
dc.identifierhttp://dx.doi.org/10.1016/j.microc.2021.106032
dc.identifier.citationMicrochemical Journal, v. 164.
dc.identifier.doi10.1016/j.microc.2021.106032
dc.identifier.issn0026-265X
dc.identifier.scopus2-s2.0-85100872466
dc.identifier.urihttp://hdl.handle.net/11449/207290
dc.language.isoeng
dc.relation.ispartofMicrochemical Journal
dc.sourceScopus
dc.subjectCarbon black paste electrode
dc.subjectCodeine
dc.subjectComposite material
dc.subjectDipyrone
dc.subjectHierarchical porous carbon
dc.titleA new electrochemical platform based on carbon black paste electrode modified with α-cyclodextrin and hierarchical porous carbon used for the simultaneous determination of dipyrone and codeineen
dc.typeArtigo

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