Use of Al2O3 in an automated on-line pre-concentration system for determination of cadmium(II) by FAAS.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSouza, Érica Silva-
Autor(es): dc.creatorMartins, Amarildo Otavio-
Autor(es): dc.creatorFajardo, Humberto Vieira-
Autor(es): dc.creatorProbst, Luiz Fernando Dias-
Autor(es): dc.creatorCarasek, Eduardo-
Data de aceite: dc.date.accessioned2019-11-06T13:33:30Z-
Data de disponibilização: dc.date.available2019-11-06T13:33:30Z-
Data de envio: dc.date.issued2015-04-09-
Data de envio: dc.date.issued2015-04-09-
Data de envio: dc.date.issued2008-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/4963-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/558044-
Descrição: dc.descriptionThis paper presents the development of an on-line pre-concentration system to determine cadmium(II) in aqueous samples. The analyte was trapped in a mini-column filled with Al2O3 in the form of macro-spheres obtained by the mixture of Al(NO3)3•9H2Oaq and chitosan dissolved in acetic acid. The mixture was dropped into an NH4OH aqueous solution under rigorous agitation using a peristaltic pump, the macro-spheres were separated from alkaline solution and dried, and finally were submitted to thermal treatment. The pre-concentration system was linear between 1.0 and 100 _gL−1, with a linearity of 0.999, sensitivity of 3.58×10−3 L_g−1 and enrichment factor of 21.9. The limits of detection and quantification were 0.08 _gL−1 and 0.28 _gL−1, respectively. The repeatability was between 2.6 and 5.9%. Recovery tests were carried out with a real aqueous sample.-
Idioma: dc.languageen-
Direitos: dc.rightsO Periódico Journal of Hazardous Materials concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3580760578368.-
Palavras-chave: dc.subjectAlumina-
Palavras-chave: dc.subjectPre-concentration-
Palavras-chave: dc.subjectCadmium(II)-
Palavras-chave: dc.subjectFlame atomic absorption spectrometry-
Título: dc.titleUse of Al2O3 in an automated on-line pre-concentration system for determination of cadmium(II) by FAAS.-
Aparece nas coleções:Repositório Institucional - UFOP

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