Application of time-resolved luminescence spectroscopy to a remote uranyl sensor

Pierre T. Varineau; Richard W. Duesing Jr.; Larry E. Wangen

doi:10.1117/12.56562

1 March 1992 Application of time-resolved luminescence spectroscopy to a remote uranyl sensor

Pierre T. Varineau, Richard W. Duesing Jr., Larry E. Wangen

Proceedings Volume 1587, Chemical, Biochemical, and Environmental Fiber Sensors III; (1992) https://doi.org/10.1117/12.56562
Event: OE Fiber, 1991, Boston, MA, United States

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.

Citation Download Citation

Pierre T. Varineau, Richard W. Duesing Jr., and Larry E. Wangen "Application of time-resolved luminescence spectroscopy to a remote uranyl sensor", Proc. SPIE 1587, Chemical, Biochemical, and Environmental Fiber Sensors III, (1 March 1992); https://doi.org/10.1117/12.56562

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