Optimization of a radioanalytical procedure for the determination of uranium isotopes in environmental samples

M. Pimpl; B. Yoo; I. Yordanova

doi:10.1007/bf02040490

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 161: Issue 2

Optimization of a radioanalytical procedure for the determination of uranium isotopes in environmental samples

Authors:

M. Pimpl

M. Pimpl Karlsruhe Nuclear Research Center Central Safety Department Box 3640 D-7500 Karlsruhe (Germany)

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B. Yoo

B. Yoo Korea Advanced Energy Research Institute Daeduk-Danji Daejon (Korea)

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I. Yordanova

I. Yordanova Bulgarian Academy of Agriculture Institute of Soil Science and Agroecology Sofia (Bulgaria)

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Pages:: 437–441

Online Publication Date:: 14 Aug 2005

Publication Date:: 17 Aug 1992

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02040490

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Abstract

A radiochemical procedure is described for the fast and sensitive measurement of uranium isotopes in gaseous and liquid effluents of nuclear facilities. Equally, this procedure is suitable to measure uranium isotopes in all kinds of environmental samples. Uranium is leached from ashed sample materials with HNO₃, HF, and Al(NO₃)₃ solution and separated from matrix elements by extraction with trioctylphosphinic oxide and backextraction with NH₄F. After radiochemical cleaning by coprecipitation with LaF₃ and anion exchange, uranium isotopes are electroplated on stainless steel discs from HCl/oxalate solution. The preparation is measured by alpha-spectrometry using surface barrier detectors. The detection limit for 1000 minutes of counting time is 2 mBq per sample and nuclide, the chemical yield is in the range of 50 to 80%.

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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)