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Title: Actinide determination and analytical support for characterization of environmental samples

Abstract

Clean chemical and Thermal Ionization Mass Spectrometry (TIMS) procedures have been developed to permit the determination of environmental actinide element concentrations and isotopic signatures. The isotopic signatures help identify element origin and separate naturally occurring or background contributions from local anthropogenic sources. Typical sample sizes for processing are 2 liters of water, 1--10 grams of sediment, and 1--20 grams of soil. Measurement limits for Pu, Am, and Np are < 1 {times} 18{sup 8} atoms, and for U are < 2.5 {times} 10{sup 12} atoms. For isotopic signatures, < 5 {times} 10{sup 8} atoms of Pu, Am, and Np are necessary, and 8 {times} 10{sup 12} atoms of U are required. Of potential interest to the IAEA is the incorporation of these techniques into their Safeguards Analytical Laboratory for environmental sampling. Studies made of surface waters, sediments and soils from the Rocky Flats Plant (RFP) in Colorado, US, are used as examples of this methodology. These studies showed that, although plant boundary actinide concentrations approached, on the downstream side, natural or background levels, isotopic signatures characteristic of plant operations were still discernible.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10129310
Report Number(s):
LA-UR-94-462; CONF-940307-26
ON: DE94007539; TRN: 94:007382
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Technical Report
Resource Relation:
Conference: International symposium on nuclear material safeguards,Vienna (Austria),14-18 Mar 1994; Other Information: PBD: [1994]
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ROCKY FLATS PLANT; CONTAMINATION; PLUTONIUM; CHEMICAL ANALYSIS; AMERICIUM; NEPTUNIUM; URANIUM; EXPERIMENTAL DATA; POLLUTION SOURCES; RADIOECOLOGICAL CONCENTRATION; 053002; 400102; RADIOACTIVE EFFLUENTS; CHEMICAL AND SPECTRAL PROCEDURES

Citation Formats

Rokop, D.J., Efurd, D.W., and Perrin, R.E. Actinide determination and analytical support for characterization of environmental samples. United States: N. p., 1994. Web. doi:10.2172/10129310.
Rokop, D.J., Efurd, D.W., & Perrin, R.E. Actinide determination and analytical support for characterization of environmental samples. United States. doi:10.2172/10129310.
Rokop, D.J., Efurd, D.W., and Perrin, R.E. Tue . "Actinide determination and analytical support for characterization of environmental samples". United States. doi:10.2172/10129310. https://www.osti.gov/servlets/purl/10129310.
@article{osti_10129310,
title = {Actinide determination and analytical support for characterization of environmental samples},
author = {Rokop, D.J. and Efurd, D.W. and Perrin, R.E.},
abstractNote = {Clean chemical and Thermal Ionization Mass Spectrometry (TIMS) procedures have been developed to permit the determination of environmental actinide element concentrations and isotopic signatures. The isotopic signatures help identify element origin and separate naturally occurring or background contributions from local anthropogenic sources. Typical sample sizes for processing are 2 liters of water, 1--10 grams of sediment, and 1--20 grams of soil. Measurement limits for Pu, Am, and Np are < 1 {times} 18{sup 8} atoms, and for U are < 2.5 {times} 10{sup 12} atoms. For isotopic signatures, < 5 {times} 10{sup 8} atoms of Pu, Am, and Np are necessary, and 8 {times} 10{sup 12} atoms of U are required. Of potential interest to the IAEA is the incorporation of these techniques into their Safeguards Analytical Laboratory for environmental sampling. Studies made of surface waters, sediments and soils from the Rocky Flats Plant (RFP) in Colorado, US, are used as examples of this methodology. These studies showed that, although plant boundary actinide concentrations approached, on the downstream side, natural or background levels, isotopic signatures characteristic of plant operations were still discernible.},
doi = {10.2172/10129310},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {3}
}