Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron
Autor(a) principal: | |
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Data de Publicação: | 2004 |
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=S0103-50532004000200024 |
Resumo: | A method for the determination of cadmium by flame atomic absorption spectrometry (FAAS) after its preconcentration onto a column containing silica gel modified with cupferron was developed. The pH, amount of adsorbent material, concentration of eluent, volume of sample and amount of Cd were optimized. The effect of several foreign ions was also investigated and showed that the retention of cadmium depended on the amounts of Zn(II) and Cu(II) present and that these interferences could be overcome by using a 0.05 mmol KI. An enrichment factor of up to 30 was obtained , the LOD was 0.5 µg L-1 (3sigma) and the LOQ was 2.0 µg L-1 (10sigma) with rsd of 1.1% (n = 10). The accuracy of the proposed method was ascertained by using certified reference material and the obtained result (3.93 ± 0.01 µg g-1) agrees with the certified value (4.15 ± 0.38 µg g-1). The determination of Cd in nail polish showed quantitative recoveries for the spiked samples. The proposed method is characterized by simplicity, efficiency and low cost. |
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Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferroncadmiumsolid-liquid extractioncupferronFAASA method for the determination of cadmium by flame atomic absorption spectrometry (FAAS) after its preconcentration onto a column containing silica gel modified with cupferron was developed. The pH, amount of adsorbent material, concentration of eluent, volume of sample and amount of Cd were optimized. The effect of several foreign ions was also investigated and showed that the retention of cadmium depended on the amounts of Zn(II) and Cu(II) present and that these interferences could be overcome by using a 0.05 mmol KI. An enrichment factor of up to 30 was obtained , the LOD was 0.5 µg L-1 (3sigma) and the LOQ was 2.0 µg L-1 (10sigma) with rsd of 1.1% (n = 10). The accuracy of the proposed method was ascertained by using certified reference material and the obtained result (3.93 ± 0.01 µg g-1) agrees with the certified value (4.15 ± 0.38 µg g-1). The determination of Cd in nail polish showed quantitative recoveries for the spiked samples. The proposed method is characterized by simplicity, efficiency and low cost.Sociedade Brasileira de Química2004-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000200024Journal of the Brazilian Chemical Society v.15 n.2 2004reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532004000200024info:eu-repo/semantics/openAccessBortoleto,Gisele G.Macarovscha,Greice T.Cadore,Solangeeng2004-06-30T00:00:00Zoai:scielo:S0103-50532004000200024Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2004-06-30T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron |
title |
Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron |
spellingShingle |
Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron Bortoleto,Gisele G. cadmium solid-liquid extraction cupferron FAAS |
title_short |
Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron |
title_full |
Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron |
title_fullStr |
Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron |
title_full_unstemmed |
Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron |
title_sort |
Determination of cadmium by flame-atomic absorption spectrometry after preconcentration on silica gel modified with cupferron |
author |
Bortoleto,Gisele G. |
author_facet |
Bortoleto,Gisele G. Macarovscha,Greice T. Cadore,Solange |
author_role |
author |
author2 |
Macarovscha,Greice T. Cadore,Solange |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Bortoleto,Gisele G. Macarovscha,Greice T. Cadore,Solange |
dc.subject.por.fl_str_mv |
cadmium solid-liquid extraction cupferron FAAS |
topic |
cadmium solid-liquid extraction cupferron FAAS |
description |
A method for the determination of cadmium by flame atomic absorption spectrometry (FAAS) after its preconcentration onto a column containing silica gel modified with cupferron was developed. The pH, amount of adsorbent material, concentration of eluent, volume of sample and amount of Cd were optimized. The effect of several foreign ions was also investigated and showed that the retention of cadmium depended on the amounts of Zn(II) and Cu(II) present and that these interferences could be overcome by using a 0.05 mmol KI. An enrichment factor of up to 30 was obtained , the LOD was 0.5 µg L-1 (3sigma) and the LOQ was 2.0 µg L-1 (10sigma) with rsd of 1.1% (n = 10). The accuracy of the proposed method was ascertained by using certified reference material and the obtained result (3.93 ± 0.01 µg g-1) agrees with the certified value (4.15 ± 0.38 µg g-1). The determination of Cd in nail polish showed quantitative recoveries for the spiked samples. The proposed method is characterized by simplicity, efficiency and low cost. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-04-01 |
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=S0103-50532004000200024 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000200024 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532004000200024 |
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.15 n.2 2004 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_ |
1750318165724758016 |