An Inter-comparison Exercise on Evaluating the Application of Novel Techniques in Radiochemical Analysis
Jixin Qiao, Susanna Salminen-Paatero, Stina Holmgren, Marie Bourgeaux-Goget, Per Roos, Petra Lagerkvist, Elisabeth Strålberg,
Effective sample processing techniques are essential in radionuclide determination for emergency preparedness, environmental monitoring, nuclear decommissioning and waste management to achieve expedite analysis. In 2014, NKS-B Rapid-Tech project gathered scientists working in radiochemistry among Nordic countries and oversaw the problems and needs in developing effective radiochemical methods. Based on screening the current analytical methods for common radionuclides (e.g., Sr, actinides) assays in individual institute, challenges and future development were identified by each institute. Several consensuses through the screening have been summarized in the final project report (NKS-336).
To practically evaluate the analytical benefit in application of novel sample processing techniques and to exchange experiences for improving radio-analytical methods used for different purposes in nuclear-related field, an inter-comparison exercise for determination of 90Sr and Pu isotopes in environmental samples was performed in 2015 among the collaborative institutes. The results obtained from the inter-comparison exercise are evaluated and the analytical performance of different novel techniques are discussed and summarized in this report.