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ID 33037
フルテキストURL
著者
Sabarudin, Akhmad Department of Chemistry, Faculty of Science, Okayama University
大島 光子 Department of Chemistry, Faculty of Science, Okayama University
Ishii, Naoe Laboratory Water Division, Nihon Millipore Ltd
本水 昌二 Department of Chemistry, Faculty of Science, Okayama University
抄録

A highly sensitive fluorescence quenching method for the determination of silicate based on the formation of an ion associate between molybdosilicate and Rhodamine B (RB) in nitric acid medium was developed. A flow injection system coupled with a fluorescence detector was used for the measurement of fluorescence intensity at 560 and 580 nm as excitation and emission wavelengths, respectively. The calibration graph for Si showed a linear range of 0.1-5 ng cm(-3) with correlation coefficient of 0.9999, and the detection limit of 0.06 ng cm(-3). The proposed method was successfully applied to the determination of silicate in ultrapurified water with satisfactory results.

キーワード
ultrapurified water
ion associate
molybdosilicate
rhodamine B
flow injection
fluorescence quenching
備考
Published with permission from the copyright holder.
This is published in Talanta, 2003 Vol.60 Issue.6 pp.1277-1285
Publisher URL: http://dx.doi.org/10.1016/S0039-9140(03)00234-0
Direct access to Thomson Web of Science record
(C)2003 by Elsevier B.V.
発行日
2003-08-29
出版物タイトル
Talanta
60巻
6号
開始ページ
1277
終了ページ
1285
資料タイプ
学術雑誌論文
言語
English
査読
有り
DOI
Web of Sience KeyUT
Submission Path
analytical_chemistry/29