On the direct measurement of 226Ra and 228Ra using 3M Empore™ RAD disk by liquid scintillation spectrometry

Jordi Fons-Castells, Mirela Vasile, Hilde Loots, Michel Bruggeman, Montse Llauradó, Freddy Verrezen

    Research outputpeer-review


    A study on the use of 3M Empore™ Radium RAD disk for the rapid and direct determination of 226Ra and 228Ra concentration in drinking water samples by means of liquid scintillation spectrometry is described. Three cocktails and several treatments were tested in order to improve the knowledge on the energy transfer between the alpha or beta—particle emissions of the isotopes fixed in the RAD disk and the cocktail. The sources of variability of this method were compared with the elution method, in which radium is stripped from de RAD disk and measured by liquid scintillation spectrometry using a Quantulus 1220™.
    Original languageEnglish
    Pages (from-to)1123–1131
    Number of pages9
    JournalJournal of Radioanalytical and Nuclear Chemistry
    Issue number3
    StatePublished - 1 Sep 2016

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