ESI-MS study of speciation in hydrolyzed aluminum chloride solutions
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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=S0103-50532012000600013 |
Resumo: | Solutions of AlCl3 were analyzed at concentrations from 0.03 to 5.0 mmol dm-3 and pH from 3.5 to 6.0 using an electrospray ionization quadrupole mass spectrometer (ESI-Q-MS). Mass spectral data were compared with those obtained by 27Al nuclear magnetic resonance (NMR) spectroscopy and potentiometry. Hydrolytic aluminum species were present in solution mainly as +1 positively charged complexes with n coordinated water molecules (n = 1-3). Analysis revealed that polymeric complexes of +2 and +3 charges (at higher Al concentrations and pH > 4) contained coordinated chloride ions. The general appearance of the mass spectra is dependent on instrumental parameters such as solvent flow rate, ionization source temperature and cone and capillary voltages. Thus, fine tuning of the instrument with respect to these parameters was performed. Sample cone voltages not exceeding 50 V led to the best agreement between potentiometric, 27Al NMR and mass spectral data. |
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ESI-MS study of speciation in hydrolyzed aluminum chloride solutionsaluminumhydrolysismass spectrometrySolutions of AlCl3 were analyzed at concentrations from 0.03 to 5.0 mmol dm-3 and pH from 3.5 to 6.0 using an electrospray ionization quadrupole mass spectrometer (ESI-Q-MS). Mass spectral data were compared with those obtained by 27Al nuclear magnetic resonance (NMR) spectroscopy and potentiometry. Hydrolytic aluminum species were present in solution mainly as +1 positively charged complexes with n coordinated water molecules (n = 1-3). Analysis revealed that polymeric complexes of +2 and +3 charges (at higher Al concentrations and pH > 4) contained coordinated chloride ions. The general appearance of the mass spectra is dependent on instrumental parameters such as solvent flow rate, ionization source temperature and cone and capillary voltages. Thus, fine tuning of the instrument with respect to these parameters was performed. Sample cone voltages not exceeding 50 V led to the best agreement between potentiometric, 27Al NMR and mass spectral data.Sociedade Brasileira de Química2012-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000600013Journal of the Brazilian Chemical Society v.23 n.6 2012reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532012000600013info:eu-repo/semantics/openAccessCvijović,MirjanaKilibard,VesnaJelikić-Stankov,MilenaLazarević,IvanJakovljević,IvanJoksović,LjubinkaĐurđević,Predrageng2012-07-13T00:00:00Zoai:scielo:S0103-50532012000600013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2012-07-13T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
ESI-MS study of speciation in hydrolyzed aluminum chloride solutions |
title |
ESI-MS study of speciation in hydrolyzed aluminum chloride solutions |
spellingShingle |
ESI-MS study of speciation in hydrolyzed aluminum chloride solutions Cvijović,Mirjana aluminum hydrolysis mass spectrometry |
title_short |
ESI-MS study of speciation in hydrolyzed aluminum chloride solutions |
title_full |
ESI-MS study of speciation in hydrolyzed aluminum chloride solutions |
title_fullStr |
ESI-MS study of speciation in hydrolyzed aluminum chloride solutions |
title_full_unstemmed |
ESI-MS study of speciation in hydrolyzed aluminum chloride solutions |
title_sort |
ESI-MS study of speciation in hydrolyzed aluminum chloride solutions |
author |
Cvijović,Mirjana |
author_facet |
Cvijović,Mirjana Kilibard,Vesna Jelikić-Stankov,Milena Lazarević,Ivan Jakovljević,Ivan Joksović,Ljubinka Đurđević,Predrag |
author_role |
author |
author2 |
Kilibard,Vesna Jelikić-Stankov,Milena Lazarević,Ivan Jakovljević,Ivan Joksović,Ljubinka Đurđević,Predrag |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Cvijović,Mirjana Kilibard,Vesna Jelikić-Stankov,Milena Lazarević,Ivan Jakovljević,Ivan Joksović,Ljubinka Đurđević,Predrag |
dc.subject.por.fl_str_mv |
aluminum hydrolysis mass spectrometry |
topic |
aluminum hydrolysis mass spectrometry |
description |
Solutions of AlCl3 were analyzed at concentrations from 0.03 to 5.0 mmol dm-3 and pH from 3.5 to 6.0 using an electrospray ionization quadrupole mass spectrometer (ESI-Q-MS). Mass spectral data were compared with those obtained by 27Al nuclear magnetic resonance (NMR) spectroscopy and potentiometry. Hydrolytic aluminum species were present in solution mainly as +1 positively charged complexes with n coordinated water molecules (n = 1-3). Analysis revealed that polymeric complexes of +2 and +3 charges (at higher Al concentrations and pH > 4) contained coordinated chloride ions. The general appearance of the mass spectra is dependent on instrumental parameters such as solvent flow rate, ionization source temperature and cone and capillary voltages. Thus, fine tuning of the instrument with respect to these parameters was performed. Sample cone voltages not exceeding 50 V led to the best agreement between potentiometric, 27Al NMR and mass spectral data. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06-01 |
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=S0103-50532012000600013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000600013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532012000600013 |
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.23 n.6 2012 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_ |
1750318173509386240 |