Determination of BrO3−by Flow Injection Analysis with 5-Br-PADAP AND SCN−
- 1 January 1990
- journal article
- separations
- Published by Taylor & Francis in Analytical Letters
- Vol. 23 (1) , 119-124
- https://doi.org/10.1080/00032719008052429
Abstract
An original method is established to determine microamounts of BrO3 − in KC103 by flow injection analysis. A cooperative reaction mechanism is also proposed based on the formation of a red-violet and metastable triatomic ion association 5-Br-PADAPH2 2.BrO3 −. SCN−, which shows maximum absorbence at 550 nm. The method offers the advantages of simplicity, rapidity and sensitivity. Beer's law obeyed from 0.25 to 2.56μg/mL of BrO3 −, and 90 determinations per hour is permitted under optimized variables by a modified simplex method.Keywords
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