CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422017000901009 |
Resumo: | This paper describes the optimization of a sample preparation method using response surface methodology for Al, Cd, Cu, Fe, Mg, Mn, Mo, Na, Ni and Ti determinations in samples of rice husk and rice husk ash by MIP OES. Sample preparation was performed using a reflux system adapted to the digestion tubes. This system allowed the decomposition of the samples without the necessity of replacement of the acids during this step without any loss of volatile elements. The decompositions were performed with 3.6 mL of HNO3 and 1.4 mL of H2SO4 for 205 min in a digester block at 225 ºC. The detection limit for determination of respective analytes in both samples were satisfactory. The RSDs for the analytes were less than 10%. Moreover, the accuracy of the method can be verified by recovery tests, whose values ranged from 82 to 115% for husk samples and 82 to 120% for ashes. The proposed method was presented as a simple, safe and low cost procedure being suitable for sample preparation and subsequent determination of metals by MIP OES. |
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CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXOrice husk and rice husk ashesreflux systemmetalsMIP OESThis paper describes the optimization of a sample preparation method using response surface methodology for Al, Cd, Cu, Fe, Mg, Mn, Mo, Na, Ni and Ti determinations in samples of rice husk and rice husk ash by MIP OES. Sample preparation was performed using a reflux system adapted to the digestion tubes. This system allowed the decomposition of the samples without the necessity of replacement of the acids during this step without any loss of volatile elements. The decompositions were performed with 3.6 mL of HNO3 and 1.4 mL of H2SO4 for 205 min in a digester block at 225 ºC. The detection limit for determination of respective analytes in both samples were satisfactory. The RSDs for the analytes were less than 10%. Moreover, the accuracy of the method can be verified by recovery tests, whose values ranged from 82 to 115% for husk samples and 82 to 120% for ashes. The proposed method was presented as a simple, safe and low cost procedure being suitable for sample preparation and subsequent determination of metals by MIP OES.Sociedade Brasileira de Química2017-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422017000901009Química Nova v.40 n.9 2017reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0100-4042.20170119info:eu-repo/semantics/openAccessLopes,Emanoelli R.Medina,Aline L.Ribeiro,Anderson S.Brandalise,João N.Nunes,Adriane M.por2017-11-21T00:00:00Zoai:scielo:S0100-40422017000901009Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2017-11-21T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO |
title |
CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO |
spellingShingle |
CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO Lopes,Emanoelli R. rice husk and rice husk ashes reflux system metals MIP OES |
title_short |
CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO |
title_full |
CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO |
title_fullStr |
CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO |
title_full_unstemmed |
CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO |
title_sort |
CARACTERIZAÇÃO ELEMENTAR DA CASCA DE ARROZ E SUAS CINZAS POR MIP OES APÓS DECOMPOSIÇÃO ÁCIDA COM SISTEMA DE REFLUXO |
author |
Lopes,Emanoelli R. |
author_facet |
Lopes,Emanoelli R. Medina,Aline L. Ribeiro,Anderson S. Brandalise,João N. Nunes,Adriane M. |
author_role |
author |
author2 |
Medina,Aline L. Ribeiro,Anderson S. Brandalise,João N. Nunes,Adriane M. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Lopes,Emanoelli R. Medina,Aline L. Ribeiro,Anderson S. Brandalise,João N. Nunes,Adriane M. |
dc.subject.por.fl_str_mv |
rice husk and rice husk ashes reflux system metals MIP OES |
topic |
rice husk and rice husk ashes reflux system metals MIP OES |
description |
This paper describes the optimization of a sample preparation method using response surface methodology for Al, Cd, Cu, Fe, Mg, Mn, Mo, Na, Ni and Ti determinations in samples of rice husk and rice husk ash by MIP OES. Sample preparation was performed using a reflux system adapted to the digestion tubes. This system allowed the decomposition of the samples without the necessity of replacement of the acids during this step without any loss of volatile elements. The decompositions were performed with 3.6 mL of HNO3 and 1.4 mL of H2SO4 for 205 min in a digester block at 225 ºC. The detection limit for determination of respective analytes in both samples were satisfactory. The RSDs for the analytes were less than 10%. Moreover, the accuracy of the method can be verified by recovery tests, whose values ranged from 82 to 115% for husk samples and 82 to 120% for ashes. The proposed method was presented as a simple, safe and low cost procedure being suitable for sample preparation and subsequent determination of metals by MIP OES. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422017000901009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422017000901009 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.21577/0100-4042.20170119 |
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.40 n.9 2017 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 |
_version_ |
1750318118436077568 |