Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorChagas, Júnior Olair-
Autor(es): dc.creatorSousa, Hércules Gidel Lucena de-
Autor(es): dc.creatorCunha, Isabela Cristina de Matos-
Autor(es): dc.creatorFroes, Roberta Eliane Santos-
Autor(es): dc.creatorSilva, Gilmare Antônia da-
Autor(es): dc.creatorLobo, Fabiana Aparecida-
Data de aceite: dc.date.accessioned2025-08-21T15:24:53Z-
Data de disponibilização: dc.date.available2025-08-21T15:24:53Z-
Data de envio: dc.date.issued2018-03-13-
Data de envio: dc.date.issued2018-03-13-
Data de envio: dc.date.issued2016-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/9608-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1013839-
Descrição: dc.descriptionThere are not reports in the literature of digestion processes of metallic cation carrier microparticles. Multivariate experimental designs were utilized to ensure an appropriate digestion for further analysis by atomic absorption spectroscopy. It was used a heater plate and the polimeric degradation was evaluated utilizing an analyzer of total organic carbon (TOC). For the total carbon (TC) content, the full factorial design 24 pointed the significance of sample volume (VAm), in relation to the variables acid volume (VAc), temperature (T) and digestion time (t). However, according to the normal distribution graph it was noted a possible significance of the T and t effects. The same was observed for TOC, including the VAm × VAc × T effect suggestive of complex behavior. In the central composite design all variables were again studied and the VAM was significant, promoting a TC decreasing at the lower evaluated level. By ANOVA a quadratic model without lack of fit was found, with the significant quadratic term. The best digestion condition was: 5.00 mL of sample, 10.00 mL of nitric acid, 60 ºC and 90 min. The multivariate optimization allowed an efficient digestion, with the initial carbon concentration of 4.60 mg L-1 decreased to 0.55 mg L-1.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsA Sociedade Brasileira de Química dá permissão à UFOP para reproduzir no RI/UFOP, uma cópia em formato eletrônico dos artigos completos, sem nenhuma edição e/ou modificação, publicados na revista Química Nova, que tenham como autores seus alunos e/ou professores. Fonte: Email do editor de 17 set. 2013.-
Palavras-chave: dc.subjectMetallic cations-
Palavras-chave: dc.subjectSample preparation-
Palavras-chave: dc.subjectPolymeric microparticles-
Título: dc.titleOtimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos.-
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