On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 1999 |
| Outros Autores: | , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFBA |
| Texto Completo: | http://www.repositorio.ufba.br/ri/handle/ri/12402 |
Resumo: | p. 1749-1753 |
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1932 |
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Cassella, Ricardo JorgensenBitencourt, Denise TeixeiraBranco, Aline GarciaFerreira, Sergio Luis CostaJesus, Djane Santiago deCarvalho, Marcelo Souza deSantelli, Ricardo ErthalCassella, Ricardo JorgensenBitencourt, Denise TeixeiraBranco, Aline GarciaFerreira, Sergio Luis CostaJesus, Djane Santiago deCarvalho, Marcelo Souza deSantelli, Ricardo Erthal2013-08-01T18:13:14Z2013-08-01T18:13:14Z19990267-9477http://www.repositorio.ufba.br/ri/handle/ri/12402v. 11p. 1749-1753An on-line procedure for the preconcentration and determination of zinc in waters and biological materials was developed. Zinc is preconcentrated from acidic medium (pH 3.0) as its thiocyanate complex onto a polyurethane foam mini-column placed in the loop of a four-way valve. The elution step is performed with a stream of 30% acetone in 2% HNO3 and the zinc displaced is introduced directly into the nebuliser of a ¯ame atomic absorption spectrometer. The system was operated under two different preconcentration times since the concentration of zinc in the two types of samples was different. For biological samples, 1 min was used and a detection limit of 3.0 mg L21 was achieved with a throughput of 40 samples per hour. At a concentration of 20 mg L21, an RSD of 2.5% was obtained. For the determination of zinc in natural water, a preconcentration time of 3 min was employed and a detection limit of 0.85 mg L21 was obtained. In this case, the system was slower with a throughput of 17 samples per hour. The RSD at 10 mg L21 was 6.0%. The continuous ¯ow system was applied to the analysis of several biological reference materials and natural water samples.Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-08-01T18:13:14Z No. of bitstreams: 1 111111111111as.pdf: 113028 bytes, checksum: bf8ce3cc36e16e6e3fceceaab55d7583 (MD5)Made available in DSpace on 2013-08-01T18:13:14Z (GMT). No. of bitstreams: 1 111111111111as.pdf: 113028 bytes, checksum: bf8ce3cc36e16e6e3fceceaab55d7583 (MD5) Previous issue date: 1999SalvadorJournal of Analytical Atomic Spectrometry10.1039/A904997Ereponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAOn-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materialsJournal of Analytical Atomic Spectrometryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINAL111111111111as.pdf111111111111as.pdfapplication/pdf113028https://repositorio.ufba.br/bitstream/ri/12402/1/111111111111as.pdfbf8ce3cc36e16e6e3fceceaab55d7583MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/12402/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT111111111111as.pdf.txt111111111111as.pdf.txtExtracted texttext/plain28606https://repositorio.ufba.br/bitstream/ri/12402/3/111111111111as.pdf.txt460fd15f3a24d833f4486b36cea463e2MD53ri/124022022-07-05 14:03:33.251oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:33Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
| dc.title.pt_BR.fl_str_mv |
On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials |
| dc.title.alternative.pt_BR.fl_str_mv |
Journal of Analytical Atomic Spectrometry |
| title |
On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials |
| spellingShingle |
On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials Cassella, Ricardo Jorgensen |
| title_short |
On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials |
| title_full |
On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials |
| title_fullStr |
On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials |
| title_full_unstemmed |
On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials |
| title_sort |
On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials |
| author |
Cassella, Ricardo Jorgensen |
| author_facet |
Cassella, Ricardo Jorgensen Bitencourt, Denise Teixeira Branco, Aline Garcia Ferreira, Sergio Luis Costa Jesus, Djane Santiago de Carvalho, Marcelo Souza de Santelli, Ricardo Erthal |
| author_role |
author |
| author2 |
Bitencourt, Denise Teixeira Branco, Aline Garcia Ferreira, Sergio Luis Costa Jesus, Djane Santiago de Carvalho, Marcelo Souza de Santelli, Ricardo Erthal |
| author2_role |
author author author author author author |
| dc.contributor.author.fl_str_mv |
Cassella, Ricardo Jorgensen Bitencourt, Denise Teixeira Branco, Aline Garcia Ferreira, Sergio Luis Costa Jesus, Djane Santiago de Carvalho, Marcelo Souza de Santelli, Ricardo Erthal Cassella, Ricardo Jorgensen Bitencourt, Denise Teixeira Branco, Aline Garcia Ferreira, Sergio Luis Costa Jesus, Djane Santiago de Carvalho, Marcelo Souza de Santelli, Ricardo Erthal |
| description |
p. 1749-1753 |
| publishDate |
1999 |
| dc.date.issued.fl_str_mv |
1999 |
| dc.date.accessioned.fl_str_mv |
2013-08-01T18:13:14Z |
| dc.date.available.fl_str_mv |
2013-08-01T18:13:14Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://www.repositorio.ufba.br/ri/handle/ri/12402 |
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0267-9477 |
| dc.identifier.number.pt_BR.fl_str_mv |
v. 11 |
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0267-9477 v. 11 |
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http://www.repositorio.ufba.br/ri/handle/ri/12402 |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Journal of Analytical Atomic Spectrometry |
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Journal of Analytical Atomic Spectrometry |
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10.1039/A904997E |
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reponame:Repositório Institucional da UFBA instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
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