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Title: Sensors and Automated Analyzers for Radionuclides

Abstract

The production of nuclear weapons materials has generated large quantities of nuclear waste and significant environmental contamination. We have developed new, rapid, automated methods for determination of radionuclides using sequential injection methodologies to automate extraction chromatographic separations, with on-line flow-through scintillation counting for real time detection. This work has progressed in two main areas: radionuclide sensors for water monitoring and automated radiochemical analyzers for monitoring nuclear waste processing operations. Radionuclide sensors have been developed that collect and concentrate radionuclides in preconcentrating minicolumns with dual functionality: chemical selectivity for radionuclide capture and scintillation for signal output. These sensors can detect pertechnetate to below regulatory levels and have been engineered into a prototype for field testing. A fully automated process monitor has been developed for total technetium in nuclear waste streams. This instrument performs sample acidification, speciation adjustment, separation and detection in fifteen minutes or less.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest National Lab., Richland, WA (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
826399
Resource Type:
Conference
Resource Relation:
Conference: 225th American Chemical Society Meeting, New Orleans, LA (US), 03/23/2003--03/27/2003; Other Information: PBD: 27 Mar 2003
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; 54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACIDIFICATION; CONTAMINATION; DETECTION; MONITORING; MONITORS; NUCLEAR WEAPONS; PERTECHNETATES; PROCESSING; PRODUCTION; RADIOACTIVE WASTES; RADIOISOTOPES; SCINTILLATION COUNTING; SCINTILLATIONS; TECHNETIUM

Citation Formats

Grate, Jay W., and Egorov, Oleg B. Sensors and Automated Analyzers for Radionuclides. United States: N. p., 2003. Web. doi:10.2172/833657.
Grate, Jay W., & Egorov, Oleg B. Sensors and Automated Analyzers for Radionuclides. United States. doi:10.2172/833657.
Grate, Jay W., and Egorov, Oleg B. Thu . "Sensors and Automated Analyzers for Radionuclides". United States. doi:10.2172/833657. https://www.osti.gov/servlets/purl/826399.
@article{osti_826399,
title = {Sensors and Automated Analyzers for Radionuclides},
author = {Grate, Jay W. and Egorov, Oleg B.},
abstractNote = {The production of nuclear weapons materials has generated large quantities of nuclear waste and significant environmental contamination. We have developed new, rapid, automated methods for determination of radionuclides using sequential injection methodologies to automate extraction chromatographic separations, with on-line flow-through scintillation counting for real time detection. This work has progressed in two main areas: radionuclide sensors for water monitoring and automated radiochemical analyzers for monitoring nuclear waste processing operations. Radionuclide sensors have been developed that collect and concentrate radionuclides in preconcentrating minicolumns with dual functionality: chemical selectivity for radionuclide capture and scintillation for signal output. These sensors can detect pertechnetate to below regulatory levels and have been engineered into a prototype for field testing. A fully automated process monitor has been developed for total technetium in nuclear waste streams. This instrument performs sample acidification, speciation adjustment, separation and detection in fifteen minutes or less.},
doi = {10.2172/833657},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 27 00:00:00 EST 2003},
month = {Thu Mar 27 00:00:00 EST 2003}
}

Conference:
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