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Title: Extraction of 211At from nitric acid solutions into various organic solvents for use as an α-source for radiation chemistry studies

Abstract

The partitioning of 211At from an irradiated bismuth target using solvent extraction into several organic solvents is presented. Although astatine speciation is difficult to measure given its invariably low chemical concentration its extraction here is consistent with the existence of a cationic species in nitric acid that is not reduced upon contact with the organic phase. This is consistent with previous work that postulated the most probable species in acidic solution as AtO +. The technique presented here has a simple experimental set up and provides high specific activity astatine solutions compatible for use in α-radiolysis studies.

Authors:
 [1];  [2];  [3]; ORCiD logo [4];  [1]
  1. Chalmers Univ. of Technology, Gothenburg (Sweden). Nuclear Chemistry and Industrial Materials Recycling
  2. Rigshospitalet, Copenhagen (Denmark). The PET Centre
  3. California State Univ., Long Beach, CA (United States). Dept. of Chemistry and Biochemistry
  4. Idaho National Lab. (INL), Idaho Falls, ID (United States). Aqueous Separations and Radiochemistry Dept.
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5)
OSTI Identifier:
1400268
Report Number(s):
INL/JOU-16-40093
Journal ID: ISSN 0236-5731; PII: 5364
Grant/Contract Number:  
AC07-05ID14517
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 314; Journal Issue: 1; Journal ID: ISSN 0236-5731
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPE AND RADIATION SOURCES; 211At; radiation chemistry; solvent extraction; speciation

Citation Formats

Ekberg, Christian, Jensen, Holger, Mezyk, Stephen P., Mincher, Bruce J., and Skarnemark, Gunnar. Extraction of 211At from nitric acid solutions into various organic solvents for use as an α-source for radiation chemistry studies. United States: N. p., 2017. Web. doi:10.1007/s10967-017-5364-1.
Ekberg, Christian, Jensen, Holger, Mezyk, Stephen P., Mincher, Bruce J., & Skarnemark, Gunnar. Extraction of 211At from nitric acid solutions into various organic solvents for use as an α-source for radiation chemistry studies. United States. doi:10.1007/s10967-017-5364-1.
Ekberg, Christian, Jensen, Holger, Mezyk, Stephen P., Mincher, Bruce J., and Skarnemark, Gunnar. Fri . "Extraction of 211At from nitric acid solutions into various organic solvents for use as an α-source for radiation chemistry studies". United States. doi:10.1007/s10967-017-5364-1. https://www.osti.gov/servlets/purl/1400268.
@article{osti_1400268,
title = {Extraction of 211At from nitric acid solutions into various organic solvents for use as an α-source for radiation chemistry studies},
author = {Ekberg, Christian and Jensen, Holger and Mezyk, Stephen P. and Mincher, Bruce J. and Skarnemark, Gunnar},
abstractNote = {The partitioning of 211At from an irradiated bismuth target using solvent extraction into several organic solvents is presented. Although astatine speciation is difficult to measure given its invariably low chemical concentration its extraction here is consistent with the existence of a cationic species in nitric acid that is not reduced upon contact with the organic phase. This is consistent with previous work that postulated the most probable species in acidic solution as AtO+. The technique presented here has a simple experimental set up and provides high specific activity astatine solutions compatible for use in α-radiolysis studies.},
doi = {10.1007/s10967-017-5364-1},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 1,
volume = 314,
place = {United States},
year = {2017},
month = {7}
}

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