Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , , |
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=S0103-50532003000200013 |
Resumo: | One of the most common uses of capillary electrophoresis with conductometric detection is the analysis of different samples containing alkaline and alkaline earth metals. However, the high sodium content, which is a very common occurrence, may cause loss of resolution of some peaks. In this work, the conditions and a running buffer suitable for serum and hemodialysis fluid analyses are presented. The approach basically consists in the reduction of mobilities of Ca2+ and Mg2+ by addition of methanol and lactate in the running buffer. Limits of detection in the range from 0.5 to 1.0 mmol L-1 with molar Na+/Ca2+ ratios as high as 1000 were obtained, which are conditions that exceed the requirements of the proposed determination. |
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Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detectioncapillary electrophoresiscontactless conductivity detectionhuman serumhemodialysis fluidOne of the most common uses of capillary electrophoresis with conductometric detection is the analysis of different samples containing alkaline and alkaline earth metals. However, the high sodium content, which is a very common occurrence, may cause loss of resolution of some peaks. In this work, the conditions and a running buffer suitable for serum and hemodialysis fluid analyses are presented. The approach basically consists in the reduction of mobilities of Ca2+ and Mg2+ by addition of methanol and lactate in the running buffer. Limits of detection in the range from 0.5 to 1.0 mmol L-1 with molar Na+/Ca2+ ratios as high as 1000 were obtained, which are conditions that exceed the requirements of the proposed determination.Sociedade Brasileira de Química2003-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532003000200013Journal of the Brazilian Chemical Society v.14 n.2 2003reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532003000200013info:eu-repo/semantics/openAccessSilva,José A. Fracassi daRicelli,Nara L.Carvalho,Alexandre Z.Lago,Claudimir L. doeng2015-11-26T00:00:00Zoai:scielo:S0103-50532003000200013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2015-11-26T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection |
title |
Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection |
spellingShingle |
Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection Silva,José A. Fracassi da capillary electrophoresis contactless conductivity detection human serum hemodialysis fluid |
title_short |
Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection |
title_full |
Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection |
title_fullStr |
Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection |
title_full_unstemmed |
Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection |
title_sort |
Improved separation of IA and IIA metal cations in matrices with high sodium concentration by capillary electrophoresis with contactless conductometric detection |
author |
Silva,José A. Fracassi da |
author_facet |
Silva,José A. Fracassi da Ricelli,Nara L. Carvalho,Alexandre Z. Lago,Claudimir L. do |
author_role |
author |
author2 |
Ricelli,Nara L. Carvalho,Alexandre Z. Lago,Claudimir L. do |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva,José A. Fracassi da Ricelli,Nara L. Carvalho,Alexandre Z. Lago,Claudimir L. do |
dc.subject.por.fl_str_mv |
capillary electrophoresis contactless conductivity detection human serum hemodialysis fluid |
topic |
capillary electrophoresis contactless conductivity detection human serum hemodialysis fluid |
description |
One of the most common uses of capillary electrophoresis with conductometric detection is the analysis of different samples containing alkaline and alkaline earth metals. However, the high sodium content, which is a very common occurrence, may cause loss of resolution of some peaks. In this work, the conditions and a running buffer suitable for serum and hemodialysis fluid analyses are presented. The approach basically consists in the reduction of mobilities of Ca2+ and Mg2+ by addition of methanol and lactate in the running buffer. Limits of detection in the range from 0.5 to 1.0 mmol L-1 with molar Na+/Ca2+ ratios as high as 1000 were obtained, which are conditions that exceed the requirements of the proposed determination. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-04-01 |
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=S0103-50532003000200013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532003000200013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532003000200013 |
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.14 n.2 2003 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 |
_version_ |
1750318165024309248 |