Antioxidants detection in aviation biokerosene by high-performance liquid chromatography using gold nanoparticles anchored in reduced graphene oxide

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorFederal University of Maranhão (UFMA)-
Autor(es): dc.contributorFluminense Federal University (UFF)-
Autor(es): dc.creatorDelfino, José R. [UNESP]-
Autor(es): dc.creatorda Silva, José Luiz [UNESP]-
Autor(es): dc.creatorMarques, Aldaléa L.B.-
Autor(es): dc.creatorStradiotto, Nelson R. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:32:53Z-
Data de disponibilização: dc.date.available2022-02-22T00:32:53Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-01-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.fuel.2019.116315-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201201-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201201-
Descrição: dc.descriptionThis paper report the development of a new HPLC-pulsed amperometric detector (HPLC-PAD) for the determination of antioxidants using glass carbon electrode (GCE) modified with reduced graphene oxide (rGO) and gold nanoparticles (AuNPs). The modified electrode exhibited efficient electro-oxidation when it was applied in the analysis of three important antioxidants: N, N'-di-sec-butyl paraphenylenediamine (BPA), 2,6-Di-tert-butylphenol (TBP) and 2,6-Di-tert-butyl-4-methylphenol (BHT). The chromatographic separation was performed with an isocratic elution composed of acetonitrile/water (90:10% v/v) and 1% acetic acid. The chromatograms showed good separation of all components in periods of time less than 10 min. The developed method presented linear ranges of 5.0 × 10−6–1.3 × 10−4 mol L−1 (BPA), 2.5 × 10−6–1.0 × 10−4 mol L−1 (TBP) and 7.5 × 10−7–1.3 × 10−4 mol L−1 (BHT), and the analytical curves presented limits of detection of 1.2 × 10−7, 1.7 × 10−7 and 7.8 × 10−8 mol L−1 for BPA, TBP and BHT, respectively. The values obtained for the recovery studies conducted ranged from 97.3 ± 1.5% to 101.5 ± 2.1%. The results showed that the method is reliable, since it presented high sensitivity, precision and accuracy. The developed method was successfully applied for the determination of antioxidants in a sample of biokerosene, consisting of isoparaffins synthesized from fermented and hydroprocessed sugars. The determined concentrations were TBP 3.1 × 10−5 ± 5.5 × 10−6 mol L−1 and BHT 3.3 × 10−5 ± 2.9 × 10−6 mol L−1.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionChemistry Institute São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Chemical Technology Federal University of Maranhão (UFMA)-
Descrição: dc.descriptionBioenergy Research Institute São Paulo State University (UNESP)-
Descrição: dc.descriptionSchool of Industrial and Metallurgical Engineering Fluminense Federal University (UFF)-
Descrição: dc.descriptionChemistry Institute São Paulo State University (UNESP)-
Descrição: dc.descriptionBioenergy Research Institute São Paulo State University (UNESP)-
Descrição: dc.descriptionFAPESP: 2017/25329-6-
Idioma: dc.languageen-
Relação: dc.relationFuel-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAntioxidants-
Palavras-chave: dc.subjectBiokerosene-
Palavras-chave: dc.subjectElectrochemical detection-
Palavras-chave: dc.subjectGold nanoparticles-
Palavras-chave: dc.subjectHPLC-
Palavras-chave: dc.subjectReduced graphene oxide-
Título: dc.titleAntioxidants detection in aviation biokerosene by high-performance liquid chromatography using gold nanoparticles anchored in reduced graphene oxide-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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