Determination of Fluoride by Fluorescence Quenching
- 1 July 1969
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 2 (7), 379-385
- https://doi.org/10.1080/00032716908051311
Abstract
A fluorescence quenching method for the determination of fluoride ion over the concentration range from 10−9 to 10−6M is presented. The fluoride ion is added to the fluorescent chelate of aluminum(III) and PAN [1- (2-pyridylazo)-2-naphthol]: the fluoride preferentially complexes the aluminum (III), displacing nonfluorescent PAN. Of the anions tested as possible interferences at equimolar levels, phosphate interferred seriously and iodide interferred somewhat.Keywords
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