Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas

Detalhes bibliográficos
Autor(a) principal: Costa,Letícia M.
Data de Publicação: 2006
Outros Autores: Korn,Maria das Graças A., Castro,Jacira T., Santos,Wagna P. C., Carvalho,Edivan V., Nogueira,Ana Rita A.
Tipo de documento: Relatório
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000100026
Resumo: The use of factorial design was evaluated for optimization of focused-microwave-assisted digestion of bean samples. Calcium, Fe, Mg, Mn and Zn percentual recoveries were determined in digestates after focused-microwave-assisted digestion according to factorial design procedures. A cavity microwave digestion was carried out to certify the elemental compositions obtained. The accuracy was checked using a standard reference material, the NIST SRM 8433 - Corn Bran. Results are in agreement with certified values at the 95% confidence limit when the Student t-test was used. Volumes of nitric and sulfuric acid, temperature, and the interplay between HNO3 and H2SO4 initial volumes were significant variables according to P-values in the analysis of variance (ANOVA).
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spelling Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondasfactorial designbeanfocused-microwave-assisted digestionThe use of factorial design was evaluated for optimization of focused-microwave-assisted digestion of bean samples. Calcium, Fe, Mg, Mn and Zn percentual recoveries were determined in digestates after focused-microwave-assisted digestion according to factorial design procedures. A cavity microwave digestion was carried out to certify the elemental compositions obtained. The accuracy was checked using a standard reference material, the NIST SRM 8433 - Corn Bran. Results are in agreement with certified values at the 95% confidence limit when the Student t-test was used. Volumes of nitric and sulfuric acid, temperature, and the interplay between HNO3 and H2SO4 initial volumes were significant variables according to P-values in the analysis of variance (ANOVA).Sociedade Brasileira de Química2006-02-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000100026Química Nova v.29 n.1 2006reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422006000100026info:eu-repo/semantics/openAccessCosta,Letícia M.Korn,Maria das Graças A.Castro,Jacira T.Santos,Wagna P. C.Carvalho,Edivan V.Nogueira,Ana Rita A.por2006-03-03T00:00:00Zoai:scielo:S0100-40422006000100026Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2006-03-03T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas
title Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas
spellingShingle Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas
Costa,Letícia M.
factorial design
bean
focused-microwave-assisted digestion
title_short Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas
title_full Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas
title_fullStr Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas
title_full_unstemmed Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas
title_sort Planejamento fatorial aplicado à digestão de amostras de feijão assistida por radiação microondas
author Costa,Letícia M.
author_facet Costa,Letícia M.
Korn,Maria das Graças A.
Castro,Jacira T.
Santos,Wagna P. C.
Carvalho,Edivan V.
Nogueira,Ana Rita A.
author_role author
author2 Korn,Maria das Graças A.
Castro,Jacira T.
Santos,Wagna P. C.
Carvalho,Edivan V.
Nogueira,Ana Rita A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Costa,Letícia M.
Korn,Maria das Graças A.
Castro,Jacira T.
Santos,Wagna P. C.
Carvalho,Edivan V.
Nogueira,Ana Rita A.
dc.subject.por.fl_str_mv factorial design
bean
focused-microwave-assisted digestion
topic factorial design
bean
focused-microwave-assisted digestion
description The use of factorial design was evaluated for optimization of focused-microwave-assisted digestion of bean samples. Calcium, Fe, Mg, Mn and Zn percentual recoveries were determined in digestates after focused-microwave-assisted digestion according to factorial design procedures. A cavity microwave digestion was carried out to certify the elemental compositions obtained. The accuracy was checked using a standard reference material, the NIST SRM 8433 - Corn Bran. Results are in agreement with certified values at the 95% confidence limit when the Student t-test was used. Volumes of nitric and sulfuric acid, temperature, and the interplay between HNO3 and H2SO4 initial volumes were significant variables according to P-values in the analysis of variance (ANOVA).
publishDate 2006
dc.date.none.fl_str_mv 2006-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000100026
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000100026
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422006000100026
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.29 n.1 2006
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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