Pyranine used as a fluorescent tracer in hydrology: pH effects in determination of its concentration
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Publication Date
4-1-1980
Publication Title
Journal of Hydrology
Volume Number
46
Issue Number
3-4
Abstract
Pyranine is used as a fluorescent tracer in hydrology. But, this compound which may exist under several ionic forms has, for a given concentration a fluorescence emission which depends strongly on the pH. We proposed a simple method for the measurement of fluorescence intensity of the tracer by buffering solutions at fixed pH values: pH 10 (excitation at 450 nm, emission at 515 nm) or pH 5 (excitation at 403 nm, emission at 515 nm). In both cases, the limit of detection is close to 4 · 10−10 g/g.
Keywords
Fluorescence spectroscopy, Fluorescent tracers, Hydrology, Tracers, Acid-base chemistry
Document Type
Article
Digital Object Identifier (DOI)
https://doi.org/10.1016/0022-1694(80)90088-8
Language
English
Recommended Citation
Launay, M.; Tripier, M.; Guizerix, J.; and Viriot, M. L., "Pyranine used as a fluorescent tracer in hydrology: pH effects in determination of its concentration" (1980). KIP Articles. 8606.
https://digitalcommons.usf.edu/kip_articles/8606
