Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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=S0103-50532013000500006 |
Resumo: | The analytical potential of chemical vapor generation and high-resolution continuum source atomic absorption spectrometry (CVG HR-CS AAS) with quartz tube atomization in determination of gold was evaluated. The volatile species of gold were formed by reaction with sodium tetrahydroborate(III) in the presence of hydrochloric acid. The influence of didodecyldimethylammonium bromide (DDAB) and sodium diethyldithiocarbamate (DDTC) on the absorbance was investigated. The concentration limit of detection was 2.6 ng mL-1 for Au. The precision of measurement at 20 ng mL-1 of Au was 10% of the relative standard deviation (RSD). The accuracy of this method was validated by analyses of NRCC PCT-1a (Copper-Nickel Sulfide Concentrate with Noble Metals), NIST SRM 2710 (Montana Soil) and NIST SRM 1643e (Trace Element in Water) certified reference materials. The measured Au contents in these three reference materials were in satisfactory agreement with the certified values. This method was also applied for gold determination in coal fly ash, sediment and nickel alloy. |
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Journal of the Brazilian Chemical Society (Online) |
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Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generationgoldchemical vapor generationcontinuum sourceatomic absorption spectrometryThe analytical potential of chemical vapor generation and high-resolution continuum source atomic absorption spectrometry (CVG HR-CS AAS) with quartz tube atomization in determination of gold was evaluated. The volatile species of gold were formed by reaction with sodium tetrahydroborate(III) in the presence of hydrochloric acid. The influence of didodecyldimethylammonium bromide (DDAB) and sodium diethyldithiocarbamate (DDTC) on the absorbance was investigated. The concentration limit of detection was 2.6 ng mL-1 for Au. The precision of measurement at 20 ng mL-1 of Au was 10% of the relative standard deviation (RSD). The accuracy of this method was validated by analyses of NRCC PCT-1a (Copper-Nickel Sulfide Concentrate with Noble Metals), NIST SRM 2710 (Montana Soil) and NIST SRM 1643e (Trace Element in Water) certified reference materials. The measured Au contents in these three reference materials were in satisfactory agreement with the certified values. This method was also applied for gold determination in coal fly ash, sediment and nickel alloy.Sociedade Brasileira de Química2013-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000500006Journal of the Brazilian Chemical Society v.24 n.5 2013reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20130096info:eu-repo/semantics/openAccessKrawczyk,MagdalenaMatusiewicz,Henrykeng2013-06-13T00:00:00Zoai:scielo:S0103-50532013000500006Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2013-06-13T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation |
title |
Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation |
spellingShingle |
Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation Krawczyk,Magdalena gold chemical vapor generation continuum source atomic absorption spectrometry |
title_short |
Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation |
title_full |
Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation |
title_fullStr |
Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation |
title_full_unstemmed |
Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation |
title_sort |
Determination of gold by high-resolution continuum source atomic absorption spectrometry with chemical vapor generation |
author |
Krawczyk,Magdalena |
author_facet |
Krawczyk,Magdalena Matusiewicz,Henryk |
author_role |
author |
author2 |
Matusiewicz,Henryk |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Krawczyk,Magdalena Matusiewicz,Henryk |
dc.subject.por.fl_str_mv |
gold chemical vapor generation continuum source atomic absorption spectrometry |
topic |
gold chemical vapor generation continuum source atomic absorption spectrometry |
description |
The analytical potential of chemical vapor generation and high-resolution continuum source atomic absorption spectrometry (CVG HR-CS AAS) with quartz tube atomization in determination of gold was evaluated. The volatile species of gold were formed by reaction with sodium tetrahydroborate(III) in the presence of hydrochloric acid. The influence of didodecyldimethylammonium bromide (DDAB) and sodium diethyldithiocarbamate (DDTC) on the absorbance was investigated. The concentration limit of detection was 2.6 ng mL-1 for Au. The precision of measurement at 20 ng mL-1 of Au was 10% of the relative standard deviation (RSD). The accuracy of this method was validated by analyses of NRCC PCT-1a (Copper-Nickel Sulfide Concentrate with Noble Metals), NIST SRM 2710 (Montana Soil) and NIST SRM 1643e (Trace Element in Water) certified reference materials. The measured Au contents in these three reference materials were in satisfactory agreement with the certified values. This method was also applied for gold determination in coal fly ash, sediment and nickel alloy. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05-01 |
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=S0103-50532013000500006 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000500006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20130096 |
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.24 n.5 2013 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_ |
1750318174847369216 |