Bioactive paper platform for detection of hydrogen peroxide in milk

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorLima, Liliane Spazzapam [UNESP]-
Autor(es): dc.creatorRossini, Eduardo Luiz [UNESP]-
Autor(es): dc.creatorPezza, Leonardo [UNESP]-
Autor(es): dc.creatorPezza, Helena Redigolo [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:33:19Z-
Data de disponibilização: dc.date.available2022-02-22T00:33:19Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-02-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.saa.2019.117774-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201351-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201351-
Descrição: dc.descriptionThis paper describes the development and application of a paper-based analytical device (μPAD) for the determination of hydrogen peroxide, an important adulterant in milk. The method employs the reaction between hydrogen peroxide and guaiacol, catalyzed by peroxidase, producing a red product, which is then quantified by digital imaging. Experimental design methodology was used to optimize the experimental conditions. The linear concentration range was from 12.5 × 10− 4 to 150 × 10− 4 mol L− 1, resulting in the regression equation AB = 0.02466 (±0.00192) + 17.053 (±0.750) C, with an excellent correlation coefficient (r = 0.986). The relative standard deviations obtained were 1.1 and 1.3% (intra-day), and 4.8 and 2.9% (inter-day), for 25.0 × 10−4 and 100 × 10−4 mol L−1 of hydrogen peroxide, respectively. The limits of detection and quantification were 3.54 × 10− 4 and 11.8 × 10− 4 mol L− 1, respectively, with standard deviation of the blank of 0.002012. The proposed method was successfully applied for the determination of peroxide in milk samples, with recoveries between 92.2 and 109%. The proposed device constitutes a valuable analytical tool for the identification of hydrogen peroxide adulteration and offers advantages including low cost, simplicity, portability, and no (or minimal) requirement for sample pretreatment.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionInstituto de Química UNESP – São Paulo State University, R. Prof. Francisco Degni 55, P.O.Box 355-
Descrição: dc.descriptionInstituto de Química UNESP – São Paulo State University, R. Prof. Francisco Degni 55, P.O.Box 355-
Descrição: dc.descriptionFAPESP: #2015/21733-1-
Descrição: dc.descriptionCAPES: 001-
Idioma: dc.languageen-
Relação: dc.relationSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBioactive paper platform-
Palavras-chave: dc.subjectDigital image-
Palavras-chave: dc.subjectHydrogen peroxide-
Palavras-chave: dc.subjectMilk adulteration-
Título: dc.titleBioactive paper platform for detection of hydrogen peroxide in milk-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.