Determination of 210Po and uranium in high salinity water samples

Paweł Grabowski; Henryk Bem

doi:10.1007/s10967-010-0720-4

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 286: Issue 2

Determination of ²¹⁰Po and uranium in high salinity water samples

Authors:

Paweł Grabowski

Paweł Grabowski Department of Chemistry, Technical University of Lodz, Żeromskiego Street 116, 90924 Lodz, Poland

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and

Henryk Bem

Henryk Bem Department of Chemistry, Technical University of Lodz, Żeromskiego Street 116, 90924 Lodz, Poland

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Pages:: 455–460

Online Publication Date:: 18 Aug 2010

Publication Date:: 01 Nov 2010

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-010-0720-4

Keywords:: 210Po; Uranium radionuclide; Liquid scintillation counting with α/β separation

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Abstract

A method for the determination of uranium and ²¹⁰Po in high salinity water samples has been elaborated. Both radionuclides are preconcentrated from 0.5 dm³ saline media by co-precipitation with hydrated manganese dioxide, followed by dissolution of the precipitate in 200 mL of 1 M HCl. Uranium isotopes ²³⁵U and ²³⁸U can be directly determined by ICP MS method with a detection limit of 0.01 ppb for ²³⁸U. Prior to a selective determination of ²¹⁰Po, the majority of other naturally occurring α-emitting radionuclides (uranium, thorium and protactinium) can be stripped from this solution by their extraction with a 50% solution of HDEHP in toluene. Finally, ²¹⁰Po is simply separated by direct transfer to an extractive scintillator containing 5% of trioctylphosphine oxide in Ultima Gold F cocktail and determined by an α/β separation liquid scintillation technique with detection limit below 0.1 mBq/dm³.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)