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ID 33035
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Author
Lukman, Hakim
Sabarudin, Akhmad
Oshima, Mitsuko
Motomizu, Shoji
Abstract
A novel chelating resin functionalized with serine diacetic acid moiety was synthesized by using chitosan as base material, and applied to the collection/concentration of trace elements in environmental water samples, followed by the determination using inductively coupled plasma-atomic emission spectrometer (ICP-AES). The synthesized resin, crosslinked chitosan serine diacetic acid (CCTS-SDA), showed good adsorption behavior toward trace amounts of Cd, Pb, Cu, Ni, V, Ga, Sc, In, and Th in a wide pH range. Additionally, rare earth elements also can be retained on the resin at neutral pH region. The adsorbed elements can be easily eluted with 1 mol L-1 of nitric acid, and their recoveries were found to be 90-100%. The CCTS-SDA was packed in a mini-column, which was then installed in a cornputer-controlled auto-pretreatment system (Auto-Pret System) for on-line trace elements collection and determination with ICP-AES. Experimental parameters which related to the improvement of sensitivity and reproducibility were optimized. The limits of detection (LOD) for 13 elements were found to be in sub-ppb level. The proposed method with CCTS-SDA resin was successfully applied to the determination of trace elements in river water samples. The method was validated by determining a certified reference material of river water, SLRS-4.
Keywords
chelating resin
chitosan
serine diacetic acid moiety
trace elements
on-line pretreatment
computer control
inductively coupled plasma-atomic emission spectrometry
SLRS-4
Note
Published with permission from the copyright holder.
This is published in Analytica Chimica Acta , 2007 Vol.588 Issue.1 pp.73-81
Publisher URL: http://dx.doi.org/10.1016/j.aca.2007.01.066
Direct access to Thomson Web of Science record
(C) 2007 by Elsevier B.V.
Published Date
2007-04-04
Publication Title
Analytica Chimica Acta
Volume
volume588
Issue
issue1
Publisher
Elsevier Science B.V.
Start Page
73
End Page
81
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 Science KeyUT
Submission Path
analytical_chemistry/38