Alternativas analíticas para determinação de ferro e titânio em cimento Portland
Autor(a) principal: | |
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Data de Publicação: | 2001 |
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=S0100-40422001000200009 |
Resumo: | In the present work four different analytical methodologies were studied for the determination of iron and titanium in Portland cement. The cement samples were dissolved with hot HCl and HF, being compared Fe and Ti concentrations through four analytical methods: molecular absorption spectrophotometry using the reagents 1,2-hydroxybenzene-3,5-disulfonic acid (Tiron) and the 5-chloro-salicylic acid (CSA), inductively coupled plasma atomic emission spectrometry (ICP-AES) and flame atomic absorption spectrophotometry (FAAS). In the spectrophotometric determinations were studied pH conditions, reagents addition order, interferences, amount of reagents, linear range and stability of the system. In the techniques of ICP-AES and FAAS were studied the best lines, interferences, sensibility and linear range. The obtained results were compared and the agreement was evaluated among the methods for the determination of the metals of interest. |
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Alternativas analíticas para determinação de ferro e titânio em cimento PortlandPortland cementiron determinationtitanium determinationIn the present work four different analytical methodologies were studied for the determination of iron and titanium in Portland cement. The cement samples were dissolved with hot HCl and HF, being compared Fe and Ti concentrations through four analytical methods: molecular absorption spectrophotometry using the reagents 1,2-hydroxybenzene-3,5-disulfonic acid (Tiron) and the 5-chloro-salicylic acid (CSA), inductively coupled plasma atomic emission spectrometry (ICP-AES) and flame atomic absorption spectrophotometry (FAAS). In the spectrophotometric determinations were studied pH conditions, reagents addition order, interferences, amount of reagents, linear range and stability of the system. In the techniques of ICP-AES and FAAS were studied the best lines, interferences, sensibility and linear range. The obtained results were compared and the agreement was evaluated among the methods for the determination of the metals of interest.Sociedade Brasileira de Química2001-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422001000200009Química Nova v.24 n.2 2001reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422001000200009info:eu-repo/semantics/openAccessFranco Jr.,Jorge de O.Korn,Maria das Graças A.Costa,Antonio Celso S.Santos Jr.,Anibal de FreitasTeixeira,Leonardo S. G.por2007-06-15T00:00:00Zoai:scielo:S0100-40422001000200009Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2007-06-15T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Alternativas analíticas para determinação de ferro e titânio em cimento Portland |
title |
Alternativas analíticas para determinação de ferro e titânio em cimento Portland |
spellingShingle |
Alternativas analíticas para determinação de ferro e titânio em cimento Portland Franco Jr.,Jorge de O. Portland cement iron determination titanium determination |
title_short |
Alternativas analíticas para determinação de ferro e titânio em cimento Portland |
title_full |
Alternativas analíticas para determinação de ferro e titânio em cimento Portland |
title_fullStr |
Alternativas analíticas para determinação de ferro e titânio em cimento Portland |
title_full_unstemmed |
Alternativas analíticas para determinação de ferro e titânio em cimento Portland |
title_sort |
Alternativas analíticas para determinação de ferro e titânio em cimento Portland |
author |
Franco Jr.,Jorge de O. |
author_facet |
Franco Jr.,Jorge de O. Korn,Maria das Graças A. Costa,Antonio Celso S. Santos Jr.,Anibal de Freitas Teixeira,Leonardo S. G. |
author_role |
author |
author2 |
Korn,Maria das Graças A. Costa,Antonio Celso S. Santos Jr.,Anibal de Freitas Teixeira,Leonardo S. G. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Franco Jr.,Jorge de O. Korn,Maria das Graças A. Costa,Antonio Celso S. Santos Jr.,Anibal de Freitas Teixeira,Leonardo S. G. |
dc.subject.por.fl_str_mv |
Portland cement iron determination titanium determination |
topic |
Portland cement iron determination titanium determination |
description |
In the present work four different analytical methodologies were studied for the determination of iron and titanium in Portland cement. The cement samples were dissolved with hot HCl and HF, being compared Fe and Ti concentrations through four analytical methods: molecular absorption spectrophotometry using the reagents 1,2-hydroxybenzene-3,5-disulfonic acid (Tiron) and the 5-chloro-salicylic acid (CSA), inductively coupled plasma atomic emission spectrometry (ICP-AES) and flame atomic absorption spectrophotometry (FAAS). In the spectrophotometric determinations were studied pH conditions, reagents addition order, interferences, amount of reagents, linear range and stability of the system. In the techniques of ICP-AES and FAAS were studied the best lines, interferences, sensibility and linear range. The obtained results were compared and the agreement was evaluated among the methods for the determination of the metals of interest. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-04-01 |
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=S0100-40422001000200009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422001000200009 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422001000200009 |
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.24 n.2 2001 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_ |
1750318101987065856 |