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

[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.

[发布日期] 2004-12-15

[效力级别]  Proceedings Paper

[关键词] sulfate;dimethylsulfonazo III;on-line reactor column;flow injection analysis;spectrophotometry