The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids

Detalhes bibliográficos
Autor(a) principal: Gil Torró,J.V
Data de Publicação: 1997
Outros Autores: Garcia Mateo, Martínez Calatayud,J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000100011
Resumo: The indirect determination of amino acids is carried out in a flow-injection assembly by means of a solid-phase reactor containing cupric salts, immobilized in polyester resin beads. A pharmaceutical substance is forced through the reactor and the released cupric ions (complexed by the pharmaceutical substance) act as a catalyst for the subsequent reaction between Fe(III) and sodium thiosulfate. The calibration graph is linear over the range 0.1-3.0 µg mL-1 glycine, the RSD was 2.3%, and the sample throughput was 28 h-1. The influence of foreign substances was studied and the method was applied to the determination of glycine in two different pharmaceutical formulations.
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spelling The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acidsCu(II) catalystspectrophotometryglycine, amino acidsflow analysissolid-phase reactorsThe indirect determination of amino acids is carried out in a flow-injection assembly by means of a solid-phase reactor containing cupric salts, immobilized in polyester resin beads. A pharmaceutical substance is forced through the reactor and the released cupric ions (complexed by the pharmaceutical substance) act as a catalyst for the subsequent reaction between Fe(III) and sodium thiosulfate. The calibration graph is linear over the range 0.1-3.0 µg mL-1 glycine, the RSD was 2.3%, and the sample throughput was 28 h-1. The influence of foreign substances was studied and the method was applied to the determination of glycine in two different pharmaceutical formulations.Sociedade Brasileira de Química1997-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000100011Journal of the Brazilian Chemical Society v.8 n.1 1997reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50531997000100011info:eu-repo/semantics/openAccessGil Torró,J.VGarcia Mateo,Martínez Calatayud,J.eng2011-10-04T00:00:00Zoai:scielo:S0103-50531997000100011Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2011-10-04T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids
title The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids
spellingShingle The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids
Gil Torró,J.V
Cu(II) catalyst
spectrophotometry
glycine, amino acids
flow analysis
solid-phase reactors
title_short The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids
title_full The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids
title_fullStr The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids
title_full_unstemmed The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids
title_sort The use of solid phase reactors as the source of a catalytic solution: the indirect flow-injection spectrophotometric determination of amino acids
author Gil Torró,J.V
author_facet Gil Torró,J.V
Garcia Mateo,
Martínez Calatayud,J.
author_role author
author2 Garcia Mateo,
Martínez Calatayud,J.
author2_role author
author
dc.contributor.author.fl_str_mv Gil Torró,J.V
Garcia Mateo,
Martínez Calatayud,J.
dc.subject.por.fl_str_mv Cu(II) catalyst
spectrophotometry
glycine, amino acids
flow analysis
solid-phase reactors
topic Cu(II) catalyst
spectrophotometry
glycine, amino acids
flow analysis
solid-phase reactors
description The indirect determination of amino acids is carried out in a flow-injection assembly by means of a solid-phase reactor containing cupric salts, immobilized in polyester resin beads. A pharmaceutical substance is forced through the reactor and the released cupric ions (complexed by the pharmaceutical substance) act as a catalyst for the subsequent reaction between Fe(III) and sodium thiosulfate. The calibration graph is linear over the range 0.1-3.0 µg mL-1 glycine, the RSD was 2.3%, and the sample throughput was 28 h-1. The influence of foreign substances was studied and the method was applied to the determination of glycine in two different pharmaceutical formulations.
publishDate 1997
dc.date.none.fl_str_mv 1997-01-01
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=S0103-50531997000100011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000100011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50531997000100011
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 Journal of the Brazilian Chemical Society v.8 n.1 1997
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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