DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000600697 |
Resumo: | An analytical method to determine tin concentrations in natural samples, by coupling atomic fluorescence spectrometry, hydride generation and flow injection system was developed. The sample digestion procedure and the conditions of hydride generation were fully optimized. The best conditions for the generation of SnH4 were obtained with NaBH4 4% (m v-1) and HCl 0.6 mol L-1. The optimized flow rates were 1.2 mL min-1 for sample, 1.2 mL min-1 for HCl and 1.6 mL min-1 for NaBH4 solution. The sample volume was 500 µL. The best acid volume for digestion of solid samples was stablished to be 3 mL HNO3 + 1 mL HCl. The accuracy of the method was established by the analysis of certified reference materials and by comparative determinations, using inductively coupled optical emission spectrometry. The approach developed was shown to offer a robust method with excellent accuracy and precision for the determination of Sn in environmental samples. Finally, the method was applied to analyse the soil, sediment and water samples, collected in area under anthropogenic activities: processing area of cassiterite in Corumbataí/SP. The obtained data indicated that there was alteration in the natural quality of the environment as a result of the activities developed in that site |
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Química Nova (Online) |
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DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICAtinAFSHGFIenvironmental samplesAn analytical method to determine tin concentrations in natural samples, by coupling atomic fluorescence spectrometry, hydride generation and flow injection system was developed. The sample digestion procedure and the conditions of hydride generation were fully optimized. The best conditions for the generation of SnH4 were obtained with NaBH4 4% (m v-1) and HCl 0.6 mol L-1. The optimized flow rates were 1.2 mL min-1 for sample, 1.2 mL min-1 for HCl and 1.6 mL min-1 for NaBH4 solution. The sample volume was 500 µL. The best acid volume for digestion of solid samples was stablished to be 3 mL HNO3 + 1 mL HCl. The accuracy of the method was established by the analysis of certified reference materials and by comparative determinations, using inductively coupled optical emission spectrometry. The approach developed was shown to offer a robust method with excellent accuracy and precision for the determination of Sn in environmental samples. Finally, the method was applied to analyse the soil, sediment and water samples, collected in area under anthropogenic activities: processing area of cassiterite in Corumbataí/SP. The obtained data indicated that there was alteration in the natural quality of the environment as a result of the activities developed in that siteSociedade Brasileira de Química2016-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000600697Química Nova v.39 n.6 2016reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0100-4042.20160073info:eu-repo/semantics/openAccessGarcez,Daniel L.Menegário,Amauri A.Ferreira,José R.Corns,Warren T.Suárez,Carlos A.Rolisola,Ana M. C. M.Yabuki,Lauren N. M.por2016-08-10T00:00:00Zoai:scielo:S0100-40422016000600697Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2016-08-10T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA |
title |
DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA |
spellingShingle |
DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA Garcez,Daniel L. tin AFS HG FI environmental samples |
title_short |
DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA |
title_full |
DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA |
title_fullStr |
DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA |
title_full_unstemmed |
DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA |
title_sort |
DETERMINAÇÃO DE ESTANHO EM AMOSTRAS AMBIENTAIS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA |
author |
Garcez,Daniel L. |
author_facet |
Garcez,Daniel L. Menegário,Amauri A. Ferreira,José R. Corns,Warren T. Suárez,Carlos A. Rolisola,Ana M. C. M. Yabuki,Lauren N. M. |
author_role |
author |
author2 |
Menegário,Amauri A. Ferreira,José R. Corns,Warren T. Suárez,Carlos A. Rolisola,Ana M. C. M. Yabuki,Lauren N. M. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Garcez,Daniel L. Menegário,Amauri A. Ferreira,José R. Corns,Warren T. Suárez,Carlos A. Rolisola,Ana M. C. M. Yabuki,Lauren N. M. |
dc.subject.por.fl_str_mv |
tin AFS HG FI environmental samples |
topic |
tin AFS HG FI environmental samples |
description |
An analytical method to determine tin concentrations in natural samples, by coupling atomic fluorescence spectrometry, hydride generation and flow injection system was developed. The sample digestion procedure and the conditions of hydride generation were fully optimized. The best conditions for the generation of SnH4 were obtained with NaBH4 4% (m v-1) and HCl 0.6 mol L-1. The optimized flow rates were 1.2 mL min-1 for sample, 1.2 mL min-1 for HCl and 1.6 mL min-1 for NaBH4 solution. The sample volume was 500 µL. The best acid volume for digestion of solid samples was stablished to be 3 mL HNO3 + 1 mL HCl. The accuracy of the method was established by the analysis of certified reference materials and by comparative determinations, using inductively coupled optical emission spectrometry. The approach developed was shown to offer a robust method with excellent accuracy and precision for the determination of Sn in environmental samples. Finally, the method was applied to analyse the soil, sediment and water samples, collected in area under anthropogenic activities: processing area of cassiterite in Corumbataí/SP. The obtained data indicated that there was alteration in the natural quality of the environment as a result of the activities developed in that site |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-07-01 |
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=S0100-40422016000600697 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000600697 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.5935/0100-4042.20160073 |
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.39 n.6 2016 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_ |
1750318117544787968 |