A rapid method for α-spectrometric analysis of radium isotopes in natural waters using ion-selective membrane technology

Purkl, Stefan and Eisenhauer, Anton (2003) A rapid method for α-spectrometric analysis of radium isotopes in natural waters using ion-selective membrane technology International Journal of Applied Radiation and Isotopes, 59 (4). pp. 245-254. DOI 10.1016/S0969-8043(03)00172-6.

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Abstract

An α-spectrometric method for the rapid determination of radium isotopes (223Ra, 224Ra and 226Ra) in environmental samples is presented. Using EmporeTM Radium Rad Disks complete separation of the target radionuclides is achieved. The high selectivity of these Rad Disks allows the straightforward use of 225Ra as yield tracer. Chemical yield is up to 92±9%. The chemical procedure can be accomplished within 5 h. α-Sources show energy resolution in the range of typically 26–40 keV (FWHM). Despite minimal thickness of the sources no significant radon (Rn) losses can be observed.

Document Type: Article
Keywords: Radium isotopes; Membrane technology; Alpha spectrometry; Electrodeposition; Radon diffusion
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
Refereed: Yes
DOI etc.: 10.1016/S0969-8043(03)00172-6
ISSN: 0020-708X
Date Deposited: 18 Feb 2008 17:26
Last Modified: 23 Aug 2017 07:44
URI: http://eprints.uni-kiel.de/id/eprint/3447

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