Analysis of Environmental Swipes Using Fluorescence Microscopy - Summary Report
- Univ. of Kansas, Lawrence, KS (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
This report summarizes efforts as part of a collaboration between Oak Ridge National Laboratory (ORNL) and the University of Kansas (KU) during fiscal year 2016 for the purpose of screening environmental swipes (ESs) using fluorescence microscopy. The overall goal of this work is to image actinide-bearing species by exploiting the fluorescence properties of the uranyl moiety. If successfully developed, this capability would permit automated screening of actinide species in environmental swipes to prioritize samples for destructive analysis. The evaluation of efforts to date has shown that uranyl fluoride can be imaged using fluorescence microscopy and the vibronic structure can be resolved; however, difficulties arise when attempting to image these materials on ESs because of spectral interference. Due to the fluorescence decay differences between cellulosic fibers and uranyl-containing materials, time-gating approaches were investigated to minimize this interference. This approach shows promise; however, the technique requires additional developmental work before it can be transitioned to a robust method for laboratory use.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1424438
- Report Number(s):
- ORNL/LTR-2017/236
- Country of Publication:
- United States
- Language:
- English
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