Determinação de Cd por FAAS em meio aquoso após pré-concentração em linha sobre SiAT

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dc.contributor.authorDe Moraes, F. V. [UNESP]
dc.contributor.authorDe Alcântara, I. L. [UNESP]
dc.contributor.authorRoldan, P. D.S. [UNESP]
dc.contributor.authorDe Castro, G. R. [UNESP]
dc.contributor.authorMargionte, M. A.L. [UNESP]
dc.contributor.authorPadilha, P. D.M. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T20:01:17Z
dc.date.available2022-04-28T20:01:17Z
dc.date.issued2003-12-01
dc.description.abstractThis paper described the preparation of 2-aminothiazole modified silica gel (SiAT) and the results of a study of the sorption and preconcentration (in batch and in flow using a column technique) of Cd(II) in aqueous medium. The sorption capacities for metal ion was 1.12 mmol g-1. The results obtained in the flow experiments, showed a recovery of 98% of Cd(II) adsorbed in a column packed with 1 g of SiAT, using 5.0 mL of 2.0 mol L-1 hydrochloric acid as eluent. An enrichment factor of 25 (150 mL solution containing 25 μg L-1 of Cd(II), 5.0 mL concentrated) was obtained by this preconcentration procedure. The sorption-desorption of Cd(II) made possible the development of a preconcentration method and quantification by Flame AAS of Cd(II) at trace level in aqueous samples.en
dc.description.affiliationDepto. de Quim. e Bioquim. Instituto de Biociências UNESP, CEP 18618-000 - Botucatu-SP
dc.description.affiliationDepto. de Quim. Analitica Instituto de Química UNESP, CEP 14800-900 - Araraquara-SP
dc.description.affiliationUnespDepto. de Quim. e Bioquim. Instituto de Biociências UNESP, CEP 18618-000 - Botucatu-SP
dc.description.affiliationUnespDepto. de Quim. Analitica Instituto de Química UNESP, CEP 14800-900 - Araraquara-SP
dc.format.extent9-17
dc.identifier.citationEcletica Quimica, v. 28, n. 1, p. 9-17, 2003.
dc.identifier.issn0100-4670
dc.identifier.scopus2-s2.0-2442667273
dc.identifier.urihttp://hdl.handle.net/11449/224591
dc.language.isopor
dc.relation.ispartofEcletica Quimica
dc.sourceScopus
dc.subject2-aminothiazole modified silica gel
dc.subjectFlame atomic absorption spectrometry
dc.subjectPreconcentration
dc.titleDeterminação de Cd por FAAS em meio aquoso após pré-concentração em linha sobre SiATpt
dc.title.alternativeDetermination of Cd (II) by FAAS in aqueous medium after preconcentration in line on a SiATen
dc.typeArtigo

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