Pre-concentration of short-lived radionuclides using manganese dioxide precipitation from surface waters
Pre-concentration of short-lived radionuclides using manganese dioxide precipitation from surface waters
Rapid determination of 222Rn and 220Rn progeny (214Pb, 212Pb, 214Bi, 212Bi) is achievable using manganese dioxide (MnO2) precipitation with analysis by c-spectrometry. This is of interest to environmental monitoring programmes that utilise gross activity methods to screen for anthropogenic radionuclides. The contribution from these naturally occurring radionuclides (NOR) varies, and is difficult to experimentally measure due to short half-lives (t? = 19.9 m–10.64 h) and low environmental activity (\0.1 Bq L-1). The extraction efficiency of the technique is above 90%, and above 80% for other nuclides (232Th, 238U, 235U, 228Ac, 226Ra, 224Ra, 210Pb, 54Mn). Short-lived NOR have been measured at two surface water locations, and indicates elevated 214Bi activity of 4.0 ± 1.1 Bq L-1.
Radon progeny, ? Surface waters, Manganese dioxide
25-28
Burnett, J.L.
0adda654-356c-43b1-ab32-7d59f262d19f
Croudace, I.W.
24deb068-d096-485e-8a23-a32b7a68afaf
Warwick, P.E.
f2675d83-eee2-40c5-b53d-fbe437f401ef
2012
Burnett, J.L.
0adda654-356c-43b1-ab32-7d59f262d19f
Croudace, I.W.
24deb068-d096-485e-8a23-a32b7a68afaf
Warwick, P.E.
f2675d83-eee2-40c5-b53d-fbe437f401ef
Burnett, J.L., Croudace, I.W. and Warwick, P.E.
(2012)
Pre-concentration of short-lived radionuclides using manganese dioxide precipitation from surface waters.
Journal of Radioanalytical and Nuclear Chemistry, 292 (1), .
(doi:10.1007/s10967-011-1392-4).
Abstract
Rapid determination of 222Rn and 220Rn progeny (214Pb, 212Pb, 214Bi, 212Bi) is achievable using manganese dioxide (MnO2) precipitation with analysis by c-spectrometry. This is of interest to environmental monitoring programmes that utilise gross activity methods to screen for anthropogenic radionuclides. The contribution from these naturally occurring radionuclides (NOR) varies, and is difficult to experimentally measure due to short half-lives (t? = 19.9 m–10.64 h) and low environmental activity (\0.1 Bq L-1). The extraction efficiency of the technique is above 90%, and above 80% for other nuclides (232Th, 238U, 235U, 228Ac, 226Ra, 224Ra, 210Pb, 54Mn). Short-lived NOR have been measured at two surface water locations, and indicates elevated 214Bi activity of 4.0 ± 1.1 Bq L-1.
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Published date: 2012
Keywords:
Radon progeny, ? Surface waters, Manganese dioxide
Organisations:
Geochemistry
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Local EPrints ID: 337014
URI: http://eprints.soton.ac.uk/id/eprint/337014
ISSN: 0236-5731
PURE UUID: 13810bca-1645-424b-9146-510d50451196
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Date deposited: 13 Apr 2012 14:38
Last modified: 15 Mar 2024 02:49
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Author:
J.L. Burnett
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