Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos.
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/9608 |
Resumo: | There 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. |
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Chagas, Júnior OlairSousa, Hércules Gidel Lucena deCunha, Isabela Cristina de MatosFroes, Roberta Eliane SantosSilva, Gilmare Antônia daLobo, Fabiana Aparecida2018-03-13T14:56:59Z2018-03-13T14:56:59Z2016CHAGAS, J. O. et al. Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. Quimica Nova, v. 40, p. 30-35, 2016. Disponível em: <http://quimicanova.sbq.org.br/detalhe_artigo.asp?id=6500>. Acesso em: 15 set. 2017.1678-7064http://www.repositorio.ufop.br/handle/123456789/9608There 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.A 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.info:eu-repo/semantics/openAccessMetallic cationsSample preparationPolymeric microparticlesOtimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/9608/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_OtimizaçãoMultivariadaMetodologia.pdfARTIGO_OtimizaçãoMultivariadaMetodologia.pdfapplication/pdf325302http://www.repositorio.ufop.br/bitstream/123456789/9608/1/ARTIGO_Otimiza%c3%a7%c3%a3oMultivariadaMetodologia.pdf31069dade77b9401c3e19d6f3a1cd60fMD51123456789/96082020-08-26 09:19:43.837oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332020-08-26T13:19:43Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. |
title |
Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. |
spellingShingle |
Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. Chagas, Júnior Olair Metallic cations Sample preparation Polymeric microparticles |
title_short |
Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. |
title_full |
Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. |
title_fullStr |
Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. |
title_full_unstemmed |
Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. |
title_sort |
Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. |
author |
Chagas, Júnior Olair |
author_facet |
Chagas, Júnior Olair Sousa, Hércules Gidel Lucena de Cunha, Isabela Cristina de Matos Froes, Roberta Eliane Santos Silva, Gilmare Antônia da Lobo, Fabiana Aparecida |
author_role |
author |
author2 |
Sousa, Hércules Gidel Lucena de Cunha, Isabela Cristina de Matos Froes, Roberta Eliane Santos Silva, Gilmare Antônia da Lobo, Fabiana Aparecida |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Chagas, Júnior Olair Sousa, Hércules Gidel Lucena de Cunha, Isabela Cristina de Matos Froes, Roberta Eliane Santos Silva, Gilmare Antônia da Lobo, Fabiana Aparecida |
dc.subject.por.fl_str_mv |
Metallic cations Sample preparation Polymeric microparticles |
topic |
Metallic cations Sample preparation Polymeric microparticles |
description |
There 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. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2018-03-13T14:56:59Z |
dc.date.available.fl_str_mv |
2018-03-13T14:56:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
CHAGAS, J. O. et al. Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. Quimica Nova, v. 40, p. 30-35, 2016. Disponível em: <http://quimicanova.sbq.org.br/detalhe_artigo.asp?id=6500>. Acesso em: 15 set. 2017. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/9608 |
dc.identifier.issn.none.fl_str_mv |
1678-7064 |
identifier_str_mv |
CHAGAS, J. O. et al. Otimização multivariada de metodologia para digestão de micropartículas poliméricas carreadoras de cátions metálicos. Quimica Nova, v. 40, p. 30-35, 2016. Disponível em: <http://quimicanova.sbq.org.br/detalhe_artigo.asp?id=6500>. Acesso em: 15 set. 2017. 1678-7064 |
url |
http://www.repositorio.ufop.br/handle/123456789/9608 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
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