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ID 33010
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Author
Sumida, Takashi
Sabarudin, Akhmad
Oshima, Mitsuko
Motomizu, Shoji
Abstract

A method for the preconcentration and speciation of chromium in seawater was developed. On-line preconcentration and determination were carried out by using inductively coupled plasma atomic emission spectrometry (ICP-AES) with dual mini-columns containing a chelating resin. In this system, Cr(III) was collected on the first column. The effluent containing residual chromium from the first column was collected on the second column after passing through a reduction-switching unit, in which the reducing agent was introduced, or not, for the reduction of Cr(VI) to Cr(Ill). Cr(VI) was determined as the difference between the concentration of pre-reduced Cr(VI) and Cr(III) in the effluent from the first column. The detection limits for Cr(III) and Cr(VI) were 0.04 and 0.09 mu g l(-1), respectively.

Keywords
ONLINE PRECONCENTRATION
SPECTROMETRY
Note
Published with permission from the copyright holder.
This is published in Analytical Sciences, 2006 Vol.22 Issue.1 pp.161-164
Publisher URL: http://dx.doi.org/10.2116/analsci.22.161
Direct access to Thomson Web of Science record
(C)2006 by The Japan Society for Analytical Chemistry
Published Date
2006-02-24
Publication Title
Analytical Sciences
Volume
volume22
Issue
issue1
Start Page
161
End Page
164
Content Type
Journal Article
language
英語
Refereed
True
DOI
Web of Science KeyUT
Submission Path
analytical_chemistry/46