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Updated: Jul 30, 2026

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer
Published on: April 12, 2017
A rapid method for alpha-spectrometric analysis of radium isotopes in natural waters using ion-selective membrane
Stefan Purkl1, Anton Eisenhauer
1Geomar, Research Center for Marine Geosciences, Wischhofstr 1-3, Kiel D-24148, Germany. spurkl@geomar.de
Abstract:
An alpha-spectrometric method for the rapid determination of radium isotopes (223Ra, 224Ra and 226Ra) in environmental samples is presented. Using Empore 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 5h. Alpha-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.
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