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Title: Radioanalytical Chemistry for Automated Nuclear Waste Process Monitoring

Abstract

This research program is directed toward rapid, sensitive, and selective determination of beta and alpha-emitting radionuclides such as 99Tc, 90Sr, and trans-uranium (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 for rapid analytical methods due to the complex, high- ionic-strength, caustic brine sample matrix, the presence of interfering radionuclides, and the variable and uncertain speciation of the radionuclides of interest. As a result, matrix modification, speciation control, and separation chemistries are required for use in automated process analyzers. Significant knowledge gaps exist relative to the design of chemistries for such analyzers so that radionuclides can be quantitatively and rapidly separated and analyzed in solutions derived from low-activity waste processing operations. This research is addressing these knowledge gaps in the area of separation science, nuclear detection, and analytical chemistry and instrumentation. The outcome of these investigations will be the knowledge necessary to choose appropriate chemistries for sample matrix modification and analyte speciation control and chemistries for rapid and selective separation and preconcentration of target radionuclides from complex sample matrices. In addition, new approaches for quantification of alpha emitters in solution using solidmore » state diode detectors, as well as improved instrumentation and signal processing techniques for use with solid-state and scintillation detectors, will be developed. New knowledge of the performance of separation materials, matrix modification and speciation control chemistries, instrument configurations, and quantitative analytical approaches will provide the basis for designing effective instrumentation for radioanalytical process monitoring. Specific analytical targets include 99 Tc, 90Sr and TRU actinides.« less

Authors:
; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab., Richland, WA; Clemson University, Clemson, SC (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
834873
Report Number(s):
EMSA-81923-2003
R&D Project: EMSA 81923; TRN: US0407388
DOE Contract Number:  
FG07-01ER63277
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 9 Jun 2003
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACTINIDES; BRINES; CHEMISTRY; MATRICES; MODIFICATIONS; MONITORING; PROCESSING; RADIOACTIVE WASTES; RADIOISOTOPES; RESEARCH PROGRAMS; SCINTILLATION COUNTERS; TARGETS; WASTE PROCESSING

Citation Formats

Egorov, Oleg B, Grate, Jay W, and DeVol, Timothy A. Radioanalytical Chemistry for Automated Nuclear Waste Process Monitoring. United States: N. p., 2003. Web. doi:10.2172/834873.
Egorov, Oleg B, Grate, Jay W, & DeVol, Timothy A. Radioanalytical Chemistry for Automated Nuclear Waste Process Monitoring. United States. doi:10.2172/834873.
Egorov, Oleg B, Grate, Jay W, and DeVol, Timothy A. Mon . "Radioanalytical Chemistry for Automated Nuclear Waste Process Monitoring". United States. doi:10.2172/834873. https://www.osti.gov/servlets/purl/834873.
@article{osti_834873,
title = {Radioanalytical Chemistry for Automated Nuclear Waste Process Monitoring},
author = {Egorov, Oleg B and Grate, Jay W and DeVol, Timothy A},
abstractNote = {This research program is directed toward rapid, sensitive, and selective determination of beta and alpha-emitting radionuclides such as 99Tc, 90Sr, and trans-uranium (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 for rapid analytical methods due to the complex, high- ionic-strength, caustic brine sample matrix, the presence of interfering radionuclides, and the variable and uncertain speciation of the radionuclides of interest. As a result, matrix modification, speciation control, and separation chemistries are required for use in automated process analyzers. Significant knowledge gaps exist relative to the design of chemistries for such analyzers so that radionuclides can be quantitatively and rapidly separated and analyzed in solutions derived from low-activity waste processing operations. This research is addressing these knowledge gaps in the area of separation science, nuclear detection, and analytical chemistry and instrumentation. The outcome of these investigations will be the knowledge necessary to choose appropriate chemistries for sample matrix modification and analyte speciation control and chemistries for rapid and selective separation and preconcentration of target radionuclides from complex sample matrices. In addition, new approaches for quantification of alpha emitters in solution using solid state diode detectors, as well as improved instrumentation and signal processing techniques for use with solid-state and scintillation detectors, will be developed. New knowledge of the performance of separation materials, matrix modification and speciation control chemistries, instrument configurations, and quantitative analytical approaches will provide the basis for designing effective instrumentation for radioanalytical process monitoring. Specific analytical targets include 99 Tc, 90Sr and TRU actinides.},
doi = {10.2172/834873},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {6}
}

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