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Title: Comparison of the Davies and Gray titrimetric method with potassium dichromate and ceric titrants

Abstract

The modified New Brunswick Laboratory (NBL) Davies and Gray titrimetry method uses potassium dichromate standard 136-f from the National Institute of Standards and Technology for calibration. However, the presence of chromium in the resulting waste stream makes the disposal of waste from this procedure costly. We report that the Actinide Analytical Chemistry (C-AAC) group at Los Alamos National Laboratory investigated and transitioned to a cerium based titrant as an alternative. We present the first long-term analytical study using this ceric-based titration method and compare it with NBL results based on the more-widely used dichromate titrimetric method.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1469553
Report Number(s):
LA-UR-18-22775
Journal ID: ISSN 0236-5731
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 318; Journal Issue: 1; Journal ID: ISSN 0236-5731
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; Uranium Assay; Davies and Gray; titrimetry; nuclear safeguards; certified reference materials; traceability

Citation Formats

Wylie, Ernest Miller, Colletti, Lisa Michelle, Walker, Laurie F., Lujan, Elmer J. W., Garduno, Katherine, and Mathew, Kattathu Joseph. Comparison of the Davies and Gray titrimetric method with potassium dichromate and ceric titrants. United States: N. p., 2018. Web. doi:10.1007/s10967-018-6129-1.
Wylie, Ernest Miller, Colletti, Lisa Michelle, Walker, Laurie F., Lujan, Elmer J. W., Garduno, Katherine, & Mathew, Kattathu Joseph. Comparison of the Davies and Gray titrimetric method with potassium dichromate and ceric titrants. United States. doi:10.1007/s10967-018-6129-1.
Wylie, Ernest Miller, Colletti, Lisa Michelle, Walker, Laurie F., Lujan, Elmer J. W., Garduno, Katherine, and Mathew, Kattathu Joseph. Wed . "Comparison of the Davies and Gray titrimetric method with potassium dichromate and ceric titrants". United States. doi:10.1007/s10967-018-6129-1. https://www.osti.gov/servlets/purl/1469553.
@article{osti_1469553,
title = {Comparison of the Davies and Gray titrimetric method with potassium dichromate and ceric titrants},
author = {Wylie, Ernest Miller and Colletti, Lisa Michelle and Walker, Laurie F. and Lujan, Elmer J. W. and Garduno, Katherine and Mathew, Kattathu Joseph},
abstractNote = {The modified New Brunswick Laboratory (NBL) Davies and Gray titrimetry method uses potassium dichromate standard 136-f from the National Institute of Standards and Technology for calibration. However, the presence of chromium in the resulting waste stream makes the disposal of waste from this procedure costly. We report that the Actinide Analytical Chemistry (C-AAC) group at Los Alamos National Laboratory investigated and transitioned to a cerium based titrant as an alternative. We present the first long-term analytical study using this ceric-based titration method and compare it with NBL results based on the more-widely used dichromate titrimetric method.},
doi = {10.1007/s10967-018-6129-1},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 1,
volume = 318,
place = {United States},
year = {2018},
month = {8}
}

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Works referenced in this record:

Toxicity and Carcinogenicity of Chromium Compounds in Humans
journal, January 2006


Dissolution of Uranium Metal and its Alloys
journal, April 1959


Uranium assay and trace element analysis of the fourth collaborative material exercise samples by the modified Davies-Gray method and the ICP-MS/OES techniques
journal, January 2018

  • Nelwamondo, Aubrey N.; Colletti, Lisa P.; Lindvall, Rachel E.
  • Journal of Radioanalytical and Nuclear Chemistry, Vol. 315, Issue 2
  • DOI: 10.1007/s10967-018-5708-5

Uranium assay determination using Davies and Gray titration: an overview and implementation of GUM for uncertainty evaluation
journal, July 2009

  • Mathew, K. J.; B├╝rger, S.; Vogt, S.
  • Journal of Radioanalytical and Nuclear Chemistry, Vol. 282, Issue 3
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