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Proceedings Paper

Application of time-resolved luminescence spectroscopy to a remote uranyl sensor
Author(s): Pierre T. Varineau; Richard W. Duesing; Larry E. Wangen
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Paper Abstract

Time-resolved luminescence spectroscopy is an effective method for the determination of a wide range of uranyl concentrations in aqueous samples. We have applied this technique to the development of a remote-sensing device using fiber optic cables coupled with a microflow cell to probe for uranyl in aqueous samples. This sensor incorporates a Nafion membrane through which UO22+ can diffuse into a reaction/analysis chamber containing phosphoric acid, a reagent that enhances the uranyl luminescence intensity and lifetime. With this device, anionic and fluorescing organic interferences could be eliminated, allowing for the determination of uranyl over a concentration range of 10-4 to 10-9 M.

Paper Details

Date Published: 1 March 1992
PDF: 10 pages
Proc. SPIE 1587, Chemical, Biochemical, and Environmental Fiber Sensors III, (1 March 1992); doi: 10.1117/12.56562
Show Author Affiliations
Pierre T. Varineau, Los Alamos National Lab. (United States)
Richard W. Duesing, Los Alamos National Lab. (United States)
Larry E. Wangen, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 1587:
Chemical, Biochemical, and Environmental Fiber Sensors III

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