Flow injection spectrophotometry coupled with a crushed barium sulfate reactor column for the determination of sulfate ion in water samples

被引:27
作者
Burakham, R
Higuchi, K
Oshima, M
Grudpan, K
Motomizu, S
机构
[1] Okayama Univ, Fac Sci, Dept Chem, Okayama 7008530, Japan
[2] Chiang Mai Univ, Fac Sci, Dept Chem, Chiang Mai 50200, Thailand
[3] FIA Instruments Co Ltd, Kita Ku, Tokyo 1140003, Japan
关键词
sulfate; dimethylsulfonazo III; on-line reactor column; flow injection analysis; spectrophotometry;
D O I
10.1016/j.talanta.2004.05.001
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A new type of a reactor column, a crushed BaSO4 reactor column used for the flow injection spectrophotometric determination of sulfate ion using the exchange reaction of sulfate ion and barium-dimethylsulfonazo III is proposed. The column is very simple and economical. It can be continuously used for 8 h before washing with water for repeated usage of at least 1 month. The procedure is sensitive. Application to various water samples was demonstrated. (C) 2004 Elsevier B.V. All rights reserved.
引用
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页码:1147 / 1150
页数:4
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