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Pre-concentration of short-lived radionuclides using manganese dioxide precipitation from surface waters

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), pp. 25-28. (doi:10.1007/s10967-011-1392-4).

Record type: Article


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


Local EPrints ID: 337014
ISSN: 0236-5731
PURE UUID: 13810bca-1645-424b-9146-510d50451196

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Date deposited: 13 Apr 2012 14:38
Last modified: 18 Jul 2017 06:05

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Author: J.L. Burnett
Author: I.W. Croudace
Author: P.E. Warwick

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