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Journal of Radioanalytical and Nuclear Chemistry

, Volume 321, Issue 3, pp 867–874 | Cite as

Improving the recovery of Ba from Sr Resin columns using chelating agents

  • Samantha A. Labb
  • Ashley Sorcic
  • Yifen Tsai
  • Derek R. McLainEmail author
Article

Abstract

Age dating of Cs-137 sources requires the accurate and precise quantification of the isotope Ba-137. In previous efforts to determine the age of Cs-137 source material, variation in Ba recovery was the largest source of uncertainty. This work investigates the use of several common chelating agents (EDTA, CDTA, DTPA, and NTA) to strip barium from Sr Resin columns quantitatively in an effort to improve the reproducibility of the separation. Batch studies showed conditions in which CDTA, EDTA, and NTA may suppress the retention of Ba on the column. Follow-up column studies showed excellent removal of barium from the column with quantitative recovery in the appropriate elution fraction. This work builds upon previous studies and establishes additional chelating agents that could be used in an age dating separation procedure.

Keywords

Age dating Cesium Barium Chelating agents Sr Resin Extraction chromatography 

Notes

Acknowledgements

This material is based upon work supported by the U.S. Department of Homeland Security under contract number HSHQDN-16-X-00011. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the U.S. Department of Homeland Security. The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory (“Argonne”). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The U.S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan.

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Copyright information

© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply  2019

Authors and Affiliations

  1. 1.Colorado State UniversityFort CollinsUSA
  2. 2.Argonne National LaboratoryLemontUSA

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