Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0103-50532004000300005 http://hdl.handle.net/11449/67834 |
Resumo: | This work describes the synthesis and characterization of 2-aminothiazole modified silica gel (SiAT), and the results of a study of the adsorption and pre-concentration (in batch and using a flow-injection system coupled to an absorption atomic spectrometer) of Cu(II), Ni(II) and Pb(II) in aqueous medium. The adsorption capacities for each metal ions in mmol g -1 were: Cu(II)= 1.18, Ni(II)= 1.15 and Pb(II)= 1.10. The results obtained in the flow experiments showed a recovery of practically 100% of the metal ions adsorbed in a mini-column packed with 100 mg of SiAT, using 100 μL of 2.0 mol L -1 HCl solution as eluent. The sorption-desorption of the metal ions made possible the application of a flow-injection system for the pre-concentration and quantification by FAAS of metal ions at trace level in natural water samples digested and not digest by an oxidizing UV photolysis. |
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Repositório Institucional da UNESP |
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Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel2-aminothiazole modified silica gelFAASPre-concentrationWater samples2 aminothiazole derivativecopperhydrochloric acidleadmetal ionnickelsilica geladsorptionaqueous solutionatomic adsorption spectrometerbatch processchemical analysischemical modificationconcentration (parameters)desorptionflow injection analysisoxidationphotolysisquantitative analysisspectrometersynthesisultraviolet radiationwater samplingThis work describes the synthesis and characterization of 2-aminothiazole modified silica gel (SiAT), and the results of a study of the adsorption and pre-concentration (in batch and using a flow-injection system coupled to an absorption atomic spectrometer) of Cu(II), Ni(II) and Pb(II) in aqueous medium. The adsorption capacities for each metal ions in mmol g -1 were: Cu(II)= 1.18, Ni(II)= 1.15 and Pb(II)= 1.10. The results obtained in the flow experiments showed a recovery of practically 100% of the metal ions adsorbed in a mini-column packed with 100 mg of SiAT, using 100 μL of 2.0 mol L -1 HCl solution as eluent. The sorption-desorption of the metal ions made possible the application of a flow-injection system for the pre-concentration and quantification by FAAS of metal ions at trace level in natural water samples digested and not digest by an oxidizing UV photolysis.Instituto de Química Univ. Estadual Paulista Julio M., CP 355, 14800-900 Araraquara - SPInstituto de Biociências Depto. de Fis. e Biofis. Univ. Estadual Paulista Julio M., CP 510, 18618-000, Botucatu - SPInstituto de Biociências Depto. de Quim. e Bioquim. Univ. Estadual Paulista Julio M., CP 510, 18618-000, Botucatu - SPUniversidade Estadual Paulista (Unesp)De Alcântara, Ilton Luiz [UNESP]Dos Santos Roldan, Paulo [UNESP]Margionte, Maurício A. L. [UNESP]Castro, Gustavo R. [UNESP]Padilha, Cilene C. F. [UNESP]De Oliveira Florentino, Ariovaldo [UNESP]De Magalhães Padilha, Pedro [UNESP]2014-05-27T11:21:08Z2014-05-27T11:21:08Z2004-08-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article366-371application/pdfhttp://dx.doi.org/10.1590/S0103-50532004000300005Journal of the Brazilian Chemical Society, v. 15, n. 3, p. 366-371, 2004.0103-5053http://hdl.handle.net/11449/6783410.1590/S0103-50532004000300005S0103-50532004000300005WOS:0002218838000042-s2.0-41430860752-s2.0-4143086075.pdf6981448637456391Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Society1.4440,357info:eu-repo/semantics/openAccess2023-10-13T06:05:35Zoai:repositorio.unesp.br:11449/67834Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-13T06:05:35Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel |
title |
Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel |
spellingShingle |
Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel De Alcântara, Ilton Luiz [UNESP] 2-aminothiazole modified silica gel FAAS Pre-concentration Water samples 2 aminothiazole derivative copper hydrochloric acid lead metal ion nickel silica gel adsorption aqueous solution atomic adsorption spectrometer batch process chemical analysis chemical modification concentration (parameters) desorption flow injection analysis oxidation photolysis quantitative analysis spectrometer synthesis ultraviolet radiation water sampling |
title_short |
Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel |
title_full |
Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel |
title_fullStr |
Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel |
title_full_unstemmed |
Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel |
title_sort |
Determination of Cu, Ni and Pb in Aqueous Medium by FAAS after Pre-Concentration on 2-Aminothiazole Modified Silica Gel |
author |
De Alcântara, Ilton Luiz [UNESP] |
author_facet |
De Alcântara, Ilton Luiz [UNESP] Dos Santos Roldan, Paulo [UNESP] Margionte, Maurício A. L. [UNESP] Castro, Gustavo R. [UNESP] Padilha, Cilene C. F. [UNESP] De Oliveira Florentino, Ariovaldo [UNESP] De Magalhães Padilha, Pedro [UNESP] |
author_role |
author |
author2 |
Dos Santos Roldan, Paulo [UNESP] Margionte, Maurício A. L. [UNESP] Castro, Gustavo R. [UNESP] Padilha, Cilene C. F. [UNESP] De Oliveira Florentino, Ariovaldo [UNESP] De Magalhães Padilha, Pedro [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
De Alcântara, Ilton Luiz [UNESP] Dos Santos Roldan, Paulo [UNESP] Margionte, Maurício A. L. [UNESP] Castro, Gustavo R. [UNESP] Padilha, Cilene C. F. [UNESP] De Oliveira Florentino, Ariovaldo [UNESP] De Magalhães Padilha, Pedro [UNESP] |
dc.subject.por.fl_str_mv |
2-aminothiazole modified silica gel FAAS Pre-concentration Water samples 2 aminothiazole derivative copper hydrochloric acid lead metal ion nickel silica gel adsorption aqueous solution atomic adsorption spectrometer batch process chemical analysis chemical modification concentration (parameters) desorption flow injection analysis oxidation photolysis quantitative analysis spectrometer synthesis ultraviolet radiation water sampling |
topic |
2-aminothiazole modified silica gel FAAS Pre-concentration Water samples 2 aminothiazole derivative copper hydrochloric acid lead metal ion nickel silica gel adsorption aqueous solution atomic adsorption spectrometer batch process chemical analysis chemical modification concentration (parameters) desorption flow injection analysis oxidation photolysis quantitative analysis spectrometer synthesis ultraviolet radiation water sampling |
description |
This work describes the synthesis and characterization of 2-aminothiazole modified silica gel (SiAT), and the results of a study of the adsorption and pre-concentration (in batch and using a flow-injection system coupled to an absorption atomic spectrometer) of Cu(II), Ni(II) and Pb(II) in aqueous medium. The adsorption capacities for each metal ions in mmol g -1 were: Cu(II)= 1.18, Ni(II)= 1.15 and Pb(II)= 1.10. The results obtained in the flow experiments showed a recovery of practically 100% of the metal ions adsorbed in a mini-column packed with 100 mg of SiAT, using 100 μL of 2.0 mol L -1 HCl solution as eluent. The sorption-desorption of the metal ions made possible the application of a flow-injection system for the pre-concentration and quantification by FAAS of metal ions at trace level in natural water samples digested and not digest by an oxidizing UV photolysis. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-08-30 2014-05-27T11:21:08Z 2014-05-27T11:21:08Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S0103-50532004000300005 Journal of the Brazilian Chemical Society, v. 15, n. 3, p. 366-371, 2004. 0103-5053 http://hdl.handle.net/11449/67834 10.1590/S0103-50532004000300005 S0103-50532004000300005 WOS:000221883800004 2-s2.0-4143086075 2-s2.0-4143086075.pdf 6981448637456391 |
url |
http://dx.doi.org/10.1590/S0103-50532004000300005 http://hdl.handle.net/11449/67834 |
identifier_str_mv |
Journal of the Brazilian Chemical Society, v. 15, n. 3, p. 366-371, 2004. 0103-5053 10.1590/S0103-50532004000300005 S0103-50532004000300005 WOS:000221883800004 2-s2.0-4143086075 2-s2.0-4143086075.pdf 6981448637456391 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Chemical Society 1.444 0,357 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
366-371 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045967866363904 |