Progress on Standardization of Radioanalytical Methods for determination of important radionu-clides for environmental assessment and waste management in Nordic nuclear industry

Xiaolin Hou, Mattias Olsson, Kaisa Vaaramaa, Sofie Englund, Olof Gottfridsson, Martin Forsström, Laura Togneri

    Research output: Book/ReportReport

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    Abstract

    The NKS-B STANDMETHOD project was launched in January 2014, aiming to standardize the radioanalytical method for the determination of important radionuclides difficult to measure in Nordic industry. The present status of radioanalysis in Nordic laboratories is reviewed and presented in this report. A review article on this topic was prepared to be published in a peer review journal, and an intercomparison exercise was implemented for determination of 63Ni and 55Fe in three types of water samples: spiked water, reactor coolant water and an acid digested filter from a nuclear reactor. Seven labs participated in the intercomparison and reported their analytical results of 63Ni. Different analytical methods used by the labs, and the results are discussed in this report. The intercomparison results for 63Ni agree relatively well for the spiked water, but a big variation of the results was observed for the real reactor coolant water and for the digested filter sample. This indicates that the methods used in some labs could not remove interfering nuclides to a sufficient extent. An improvement of the analytical method of some labs and a follow-up intercomparison exercise are proposed.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherNKS Secretariat
    Number of pages25
    ISBN (Electronic)978-87-7893-408-6
    Publication statusPublished - 2015
    SeriesNKS
    Number327

    Keywords

    • Radioanalysis
    • 63Ni
    • Intercomparison
    • Reactor water
    • Radionuclide
    • NKS-327

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