1 March 1992 Application of time-resolved luminescence spectroscopy to a remote uranyl sensor
Author Affiliations +
Proceedings Volume 1587, Chemical, Biochemical, and Environmental Fiber Sensors III; (1992); doi: 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.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pierre T. Varineau, Richard W. Duesing, 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); doi: 10.1117/12.56562; https://doi.org/10.1117/12.56562
PROCEEDINGS
10 PAGES


SHARE
KEYWORDS
Sensors

Fiber optics sensors

Luminescence

Ions

Diffusion

Environmental sensing

Chemical analysis

Back to Top