ID 19945
FullText URL
Author
Gao, Yunhua
Lee, Kyue-Hyung
Oshima, Mitsuko
Motomizu, Shoji
Abstract
The adsorption behavior of 60 elements at the 10 ng ml(-1) level on high-porous cross-linked chitosan in a packed mini-column was systematically examined. The chitosan used could adsorb anionic species quantitatively as oxoanions or chloro complex anions of metals, such as Ti, V, Mo, W, Ga, Bi, Au(III), Pt(IV) and Pd(II), in sample solutions by an ion-exchange mechanism, and could adsorb some metal ions by a chelating mechanism. Most of the metal ions adsorbed on the chitosan were eluted with 1 M nitric acid, and other noble metals, such as Au, Pt and Pd, were eluted by a solution containing 1 M hydrochloric acid and 0.05 M thiourea. The adsorption fraction of metal ions was investigated by measuring metal ions in eluates by ICP-MS. By using the proposed column pretreatment method, metal ions present as their oxoanions in river-water samples, such as Ti, V, Mo, W, Ga and Bi, were collected on the cross-linked chitosan, eluted and determined. The method was applied to an analysis of reference materials distributed by the Japan Society for Analytical Chemistry: JAC 0031 and JAC 0032. The analytical results agreed closely with other reference values.
Published Date
2000-12-10
Publication Title
Analytical Sciences
Volume
volume16
Issue
issue12
Publisher
日本分析化学会
Start Page
1303
End Page
1308
ISSN
0910-6340
NCID
AA10500785
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
Copyright Holders
日本分析化学会
File Version
publisher
DOI