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ID 33036
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Author
Sabarudin, Akhmad
Oshima, Mitsuko
Hakim, Lukman
Oshita, Koji
Gao, Yun Hua
Motomizu, Shoji
Abstract
A chitosan resin derivatized with 3,4-dihydroxybenzoic acid moiety (CCTS-DHBA resin) was newly synthesized for the collection/concentration of trace uranium by using cross-linked chitosan (CCTS) as base material, and the adsorption behavior of uranium as well as 60 elements on the resin was examined by passing the sample solutions through a mini-column packed with the resin. After the elution of the collected elements on the resin with 1M HNO3, the eluates were measured by inductively coupled plasma-mass spectrometry (ICP-MS). The CCTS-DHBA resin can adsorb several metal cations and several oxoanionic elements at appropriate pH. Among these metal ions, uranium shows an excellent adsorption behavior on this resin. Uranium as UO22+ species can be adsorbed on the resin by chelating mechanism with adsorption capacity of 330 mg g(-1) resin. Through the column treatment, the complete removal of large amounts of alkali and alkaline earth matrices without any loss of adsorption efficiency over prolonged usage were achieved with this resin. The CCTS-DHBA resin was applied to the adsorption/collection of uranium in tap water, river water and seawater samples with satisfactory results. The validation of the proposed method was carried out by analyzing uranium in the standard reference materials of SLRS-4, CASS-4, and NASS-5 after passing through the CCTS-DHBA resin, and the results showed good agreement with the certified values.
Keywords
Chitosan resin
3,4-dihydroxybenzoic acid
Uranium
Adsorption
Water
Inductively coupled plasma-mass spectrometry
Note
Published with permission from the copyright holder.
This is published in Analytica Chimica Acta, 2007 Vol.581 Issue.2 pp.214-220
Publisher URL: http://dx.doi.org/10.1016/j.aca.2006.08.024
Direct access to Thomson Web of Science record
(C)2006 by Elsevier B.V.
Published Date
2007-01-09
Publication Title
Analytica Chimica Acta
Volume
volume581
Issue
issue2
Publisher
Elsevier Science B.V.
Start Page
214
End Page
220
ISSN
0003-2670
NCID
AA00524834
Content Type
Journal Article
language
英語
Copyright Holders
Elsevier Science B.V.
File Version
author
Refereed
True
DOI
Web of Sience KeyUT
Submission Path
analytical_chemistry/34