Radioanalytical Chemistry for Automated Nuclear Waste Process Monitoring
This research is directed toward rapid, sensitive, and selective determination of beta- and alpha emitting radionuclides such as 99Tc, 90Sr, and transuranium (TRU) elements in low-activity waste (LAW) processing streams. The overall technical approach is based on automated radiochemical measurement principles. Nuclear waste process streams are particularly challenging due to the complex, high-ionic-strength, caustic brine sample matrix, the presence of interfering radionuclides, and the sometimes variable and uncertain speciation of the radionuclides to be analyzed. As a result, matrix modification, speciation control, and separation chemistries are required for use in automated process analyzers. Significant knowledge gaps exist relative to designing chemistries for such analyzers so that radionuclides can be quantitatively and rapidly separated and analyzed in high ionic strength solutions derived from low-activity waste processing operations. This research is addressing the se knowledge gaps and automated microscale fluid handling techniques will be used to integrate sample modification, chemical separation chemistries, and radiometric detection steps within a single functional process analytical instrument.
- Research Organization:
- Pacific Northwest National Lab., Richland, WA; Clemson University, Clemson, SC (US)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM) (US)
- DOE Contract Number:
- FG07-01ER63277
- OSTI ID:
- 834843
- Report Number(s):
- EMSP-81923-2002; R&D Project: EMSP 81923; TRN: US0407346
- Resource Relation:
- Other Information: PBD: 1 Jun 2002
- Country of Publication:
- United States
- Language:
- English
Similar Records
Radioanalytical Chemistry for Automated Nuclear Waste Process Monitoring
Radioanalytical Chemistry for Automated Nuclear Waste Process Monitoring