Simultaneous voltammetric determination of carbendazim and carbaryl in medicinal plant infusions with a boron-doped diamond electrode

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dc.citation.issue8
dc.citation.volume97
dc.contributor.authorLima, Thays de Souza [UNIFESP]
dc.contributor.authorSimões, Fabio Ruiz [UNIFESP]
dc.contributor.authorCodognoto, Lucia [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.coverageAbingdon
dc.date.accessioned2020-07-17T14:03:33Z
dc.date.available2020-07-17T14:03:33Z
dc.date.issued2017
dc.description.abstractThis study is aimed to develop an electroanalytical methodology using a boron-doped diamond electrode to determine simultaneously and selectively carbendazim (CBZ) and carbaryl (CAR). In previous studies using cyclic voltammetry oxidation, peaks were observed at 1.03V (CBZ) and 1.44V (CAR), with characteristics of an irreversible process controlled by diffusion of species, with a supporting electrolyte of BR buffer (0.1mol L-1) and pH adjusted to 6.0. The differences between the potentials for both pesticides, about 400mV, indicate the possibility of selective determination of CBZ and CAR. The square-wave voltammetric parameters were optimised. The best separation conditions were pH 6.0, square-wave frequency of 100s(-1), pulse amplitude of 50mV and scan increment of 2.0mV. These parameters were used to obtain the calibration curves of CBZ and CAR. An analytical curve was constructed in the range concentration of CBZ of 1.3mg L-1 to 15.3mg L-1 and CAR of 1.0mg L-1 to 11.4mg L-1, respectively. The limits of detection (LOD) and limits of quantification (LOQ) for CBZ were 0.40mg L-1 and 1.30mg L-1, respectively. For CAR, the LOD and LOQ were 0.30mg L-1 and 1.00mg L-1, respectively. Sensitivity values were 0.78 and 2.60 mu A/mg L-1 for CBZ and CAR, respectively. The electroanalytical method was applied in Mikania glomerata infusions. The recovery values were 106.2% and 116.5% for CBZ and CAR, respectively. The results show that the developed method is suitable for application in medicinal plant samples.en
dc.description.affiliationUniv Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, Dept Ciencias Exatas & Terra, Diadema, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Dept Ciencias Mar, Santos, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, Dept Ciencias Exatas & Terra, Diadema, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Ciencias Mar, Santos, Brazil
dc.description.provenanceMade available in DSpace on 2020-07-17T14:03:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2017en
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt
dc.description.sponsorshipIDFAPESP: 2014/23858-3pt
dc.description.sponsorshipIDFAPESP: 2014/23858-3pt
dc.description.sponsorshipIDFAPESP: 2008/50588-6pt
dc.format.extent768-782
dc.identifierhttps://dx.doi.org/10.1080/03067319.2017.1354992
dc.identifier.citationInternational Journal Of Environmental Analytical Chemistry. Abingdon, v. 97, n. 8, p. 768-782, 2017.
dc.identifier.doi10.1080/03067319.2017.1354992
dc.identifier.issn0306-7319
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/55485
dc.identifier.wosWOS:000407897800006
dc.language.isoeng
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofInternational Journal Of Environmental Analytical Chemistry
dc.rightsAcesso restrito
dc.subjectCarbendazimen
dc.subjectCarbarylen
dc.subjectSimultaneous determinationen
dc.subjectBoron-doped diamond electrodeen
dc.subjectMikania glomerata infusionsen
dc.titleSimultaneous voltammetric determination of carbendazim and carbaryl in medicinal plant infusions with a boron-doped diamond electrodeen
dc.typeArtigo
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