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ID 33026
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Author
Hakim, Lukman
Sabarudin, Akhmad
Oshita, Koji
Oshima, Mitsuko
Motomizu, Shoji
Abstract

A novel chitosan-based resin functionalized with threonine moiety was synthesized, and applied to the collection/concentration of Mo, V and Cu in environmental water samples, followed by their determination using inductively coupled plasma-atomic emission spectrometer (ICP-AES). The synthesized resin, cross-linked chitosan-threonine (CCTS-Thr), showed good adsorption behavior toward trace amounts of Mo, V and Cu in a wide pH range. The adsorbed elements can be easily eluted using 2 mol L-1 of nitric acid, and their recoveries were found to be 90-100%. The CCTS-Thr was packed in a mini-column, which was then installed in a computer-controlled auto-pretreatment system (Auto-Pret System) for on-line trace elements collection and determination by ICP-AES. Experimental parameters related to the improvement of sensitivity and reproducibility were optimized. The limits of detection (LODs) for target metals were found to be in sub-ppb level. The proposed method with CCTS-Thr resin was successfully applied to the determination of Mo, V and Cu in environmental water samples. The recovery test showed that common matrices which exist in environmental water samples did not interfere with the determination.

Keywords
resin
chitosan
threonine moiety
molybdenum
vanadium
copper
on-line pretreatment
computer control
inductively coupled plasma-atomic emission spectrometry
Note
Published with permission from the copyright holder.
This is published in Talanta , 2007 Vol.74 Issue.4 pp.977-985
Publisher URL: http://dx.doi.org/10.1016/j.talanta.2007.08.012
Direct access to Thomson Web of Science record
(C) 2007 by Elsevier B.V.
Published Date
2007-08-19
Publication Title
Talanta
Volume
volume74
Issue
issue4
Start Page
977
End Page
985
Content Type
Journal Article
language
英語
Refereed
True
DOI
Web of Sience KeyUT
Submission Path
analytical_chemistry/40