Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry
Autor(a) principal: | |
---|---|
Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000100015 |
Resumo: | A simple cloud point extraction procedure is presented for the preconcentration of copper in various samples. After complexation by 4-hydroxy-2-mercapto-6-propylpyrimidine (PTU), copper ions are quantitatively extracted into the phase rich in Triton X-114 after centrifugation. Methanol acidified with 0.5 mol L-1 HNO3 was added to the surfactant-rich phase prior to its analysis by flame atomic absorption spectrometry (FAAS). Analytical parameters including concentrations for PTU, Triton X-114 and HNO3, bath temperature, centrifugation rate and time were optimized. The influences of the matrix ions on the recoveries of copper ions were investigated. The detection limits (3SDb/m, n=4) of 1.6 ng mL-1 along with enrichment factors of 30 for Cu were achieved. The proposed procedure was applied to the analysis of environmental samples. |
id |
SBQ-3_27fc6abf3b645abe0c383b76273e11f4 |
---|---|
oai_identifier_str |
oai:scielo:S0100-40422008000100015 |
network_acronym_str |
SBQ-3 |
network_name_str |
Química Nova (Online) |
repository_id_str |
|
spelling |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry4-hydroxy-2-mercapto-6-propylpyrimidinecloud point extractioncopper ionA simple cloud point extraction procedure is presented for the preconcentration of copper in various samples. After complexation by 4-hydroxy-2-mercapto-6-propylpyrimidine (PTU), copper ions are quantitatively extracted into the phase rich in Triton X-114 after centrifugation. Methanol acidified with 0.5 mol L-1 HNO3 was added to the surfactant-rich phase prior to its analysis by flame atomic absorption spectrometry (FAAS). Analytical parameters including concentrations for PTU, Triton X-114 and HNO3, bath temperature, centrifugation rate and time were optimized. The influences of the matrix ions on the recoveries of copper ions were investigated. The detection limits (3SDb/m, n=4) of 1.6 ng mL-1 along with enrichment factors of 30 for Cu were achieved. The proposed procedure was applied to the analysis of environmental samples.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000100015Química Nova v.31 n.1 2008reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422008000100015info:eu-repo/semantics/openAccessShokrollahi,ArdeshirGhaedi,MehrorangGharaghani,ShivaFathi,Mohammad RezaSoylak,Mustafaeng2008-02-22T00:00:00Zoai:scielo:S0100-40422008000100015Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2008-02-22T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry |
title |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry |
spellingShingle |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry Shokrollahi,Ardeshir 4-hydroxy-2-mercapto-6-propylpyrimidine cloud point extraction copper ion |
title_short |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry |
title_full |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry |
title_fullStr |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry |
title_full_unstemmed |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry |
title_sort |
Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry |
author |
Shokrollahi,Ardeshir |
author_facet |
Shokrollahi,Ardeshir Ghaedi,Mehrorang Gharaghani,Shiva Fathi,Mohammad Reza Soylak,Mustafa |
author_role |
author |
author2 |
Ghaedi,Mehrorang Gharaghani,Shiva Fathi,Mohammad Reza Soylak,Mustafa |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Shokrollahi,Ardeshir Ghaedi,Mehrorang Gharaghani,Shiva Fathi,Mohammad Reza Soylak,Mustafa |
dc.subject.por.fl_str_mv |
4-hydroxy-2-mercapto-6-propylpyrimidine cloud point extraction copper ion |
topic |
4-hydroxy-2-mercapto-6-propylpyrimidine cloud point extraction copper ion |
description |
A simple cloud point extraction procedure is presented for the preconcentration of copper in various samples. After complexation by 4-hydroxy-2-mercapto-6-propylpyrimidine (PTU), copper ions are quantitatively extracted into the phase rich in Triton X-114 after centrifugation. Methanol acidified with 0.5 mol L-1 HNO3 was added to the surfactant-rich phase prior to its analysis by flame atomic absorption spectrometry (FAAS). Analytical parameters including concentrations for PTU, Triton X-114 and HNO3, bath temperature, centrifugation rate and time were optimized. The influences of the matrix ions on the recoveries of copper ions were investigated. The detection limits (3SDb/m, n=4) of 1.6 ng mL-1 along with enrichment factors of 30 for Cu were achieved. The proposed procedure was applied to the analysis of environmental samples. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 |
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=S0100-40422008000100015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000100015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422008000100015 |
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.31 n.1 2008 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_ |
1750318107200585728 |