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Title: Rapid extraction and assay of uranium from environmental surface samples

Abstract

Extraction methods enabling faster removal and concentration of uranium compounds for improved trace and low-level assay are demonstrated for standard surface sampling material in support of nuclear safeguards efforts, health monitoring, and other nuclear analysis applications. A key problem with the existing surface sampling swipes is the requirement for complete digestion of sample and sampling matrix. This is a time-consuming and labour-intensive process that limits laboratory throughput, elevates costs, and increases background levels. Various extraction methods are explored for their potential to quickly and efficiently remove different chemical forms of uranium from standard surface sampling material. A combination of carbonate and peroxide solutions is shown to give the most rapid and complete form of uranyl compound extraction and dissolution. This rapid extraction process is demonstrated to be compatible with standard inductive coupled plasma mass spectrometry methods for uranium isotopic assay as well as screening techniques such as x-ray fluorescence. The general approach described has application beyond uranium to other analytes of nuclear forensic interest (e.g., rare earth elements and plutonium) as well as heavy metals for environmental and industrial hygiene monitoring.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
OSTI Identifier:
1372962
Report Number(s):
PNNL-SA-116891
Journal ID: ISSN 0039-9140; NN2001000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Talanta; Journal Volume: 173
Country of Publication:
United States
Language:
English

Citation Formats

Barrett, Christopher A., Chouyyok, Wilaiwan, Speakman, Robert J., Olsen, Khris B., and Addleman, Raymond Shane. Rapid extraction and assay of uranium from environmental surface samples. United States: N. p., 2017. Web. doi:10.1016/j.talanta.2017.05.052.
Barrett, Christopher A., Chouyyok, Wilaiwan, Speakman, Robert J., Olsen, Khris B., & Addleman, Raymond Shane. Rapid extraction and assay of uranium from environmental surface samples. United States. doi:10.1016/j.talanta.2017.05.052.
Barrett, Christopher A., Chouyyok, Wilaiwan, Speakman, Robert J., Olsen, Khris B., and Addleman, Raymond Shane. Sun . "Rapid extraction and assay of uranium from environmental surface samples". United States. doi:10.1016/j.talanta.2017.05.052.
@article{osti_1372962,
title = {Rapid extraction and assay of uranium from environmental surface samples},
author = {Barrett, Christopher A. and Chouyyok, Wilaiwan and Speakman, Robert J. and Olsen, Khris B. and Addleman, Raymond Shane},
abstractNote = {Extraction methods enabling faster removal and concentration of uranium compounds for improved trace and low-level assay are demonstrated for standard surface sampling material in support of nuclear safeguards efforts, health monitoring, and other nuclear analysis applications. A key problem with the existing surface sampling swipes is the requirement for complete digestion of sample and sampling matrix. This is a time-consuming and labour-intensive process that limits laboratory throughput, elevates costs, and increases background levels. Various extraction methods are explored for their potential to quickly and efficiently remove different chemical forms of uranium from standard surface sampling material. A combination of carbonate and peroxide solutions is shown to give the most rapid and complete form of uranyl compound extraction and dissolution. This rapid extraction process is demonstrated to be compatible with standard inductive coupled plasma mass spectrometry methods for uranium isotopic assay as well as screening techniques such as x-ray fluorescence. The general approach described has application beyond uranium to other analytes of nuclear forensic interest (e.g., rare earth elements and plutonium) as well as heavy metals for environmental and industrial hygiene monitoring.},
doi = {10.1016/j.talanta.2017.05.052},
journal = {Talanta},
number = ,
volume = 173,
place = {United States},
year = {Sun Oct 01 00:00:00 EDT 2017},
month = {Sun Oct 01 00:00:00 EDT 2017}
}