https://repositorio.ufba.br/handle/ri/6042
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Lemos, Valfredo Azevedo | - |
dc.contributor.author | Bezerra, Marcos de Almeida | - |
dc.contributor.author | Amorim, Fábio Alan Carqueija | - |
dc.creator | Lemos, Valfredo Azevedo | - |
dc.creator | Bezerra, Marcos de Almeida | - |
dc.creator | Amorim, Fábio Alan Carqueija | - |
dc.date.accessioned | 2012-06-01T12:37:50Z | - |
dc.date.issued | 2008 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/6042 | - |
dc.description | Acesso restrito: Texto completo. p. 613-619 | pt_BR |
dc.description.abstract | In the present paper, an on-line preconcentration procedure for determination of cadmium, copper and zinc by thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS) is proposed. Amberlite XAD-4 functionalized with 3,4-dihydroxybenzoic acid (XAD4-DHB) packed in a minicolumn was used as sorbent material. The metals were retained on the XAD-DHB resin, from which it could be eluted directly to the thermospray flame furnace system. The detection limits were 28 (Cd), 100 (Cu) and 77 ng L−1 (Zn) for 60 s preconcentration time, at a sample flow rate of 7.0mLmin−1. Enrichment factors were 102, 91 and 62, for cadmium, copper and zinc, respectively. The procedure has been applied successfully to metal determination in biological standard reference materials. © 2008 Elsevier B.V. All rights reserved. | pt_BR |
dc.language.iso | en | pt_BR |
dc.source | http://dx.doi.org/10.1016/j.jhazmat.2008.01.027 | pt_BR |
dc.subject | Cadmium | pt_BR |
dc.subject | Copper | pt_BR |
dc.subject | Zinc | pt_BR |
dc.subject | Preconcentration | pt_BR |
dc.subject | Solid-phase extraction | pt_BR |
dc.title | On-line preconcentration using a resin functionalized with 3,4-dihydroxybenzoic acid for the determination of trace elements in biological samples by thermospray flame furnace atomic absorption spectrometry | pt_BR |
dc.title.alternative | Journal of Hazardous Materials | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | v. 157, n. 2-3 | pt_BR |
dc.embargo.liftdate | 10000-01-01 | - |
Aparece nas coleções: | Artigo Publicado em Periódico (Química) |
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