Mainz 2026 – scientific programme
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MS: Fachverband Massenspektrometrie
MS 3: Actinide Analysis
MS 3.6: Talk
Tuesday, March 3, 2026, 12:45–13:00, N 6
Traceable Reference Material for mass spectrometry: The EURAMET project Metrology for the harmonisation of measurements of environmental pollutants in Europe — •Aaron Lehnert1, Lucille Chambon2, Ben Russell3, Dirk Arnold4, and Clemens Walther1 — 1Leibniz Universität Hannover, Germany — 2Université Paris-Saclay, CEA, List, Laboratoire National Henri Becquerel, France — 3National Physical Laboratory, United Kingdom — 4Physikalisch-Technische Bundesanstalt, Germany
The European Green Deal's ambition for zero pollution requires the development of highly sensitive techniques to detect ultra-low amounts of pollutants and to determine their isotope ratios, where mass spectrometry is a key method for determination of non-radioactive polluting elements and long-lived radionuclides. The MetroPOEM project bridges the traceability gap between activity and mass-based measurements - particularly estimation of mass bias.
A solid silica-based reference material, produced by sol-gel synthesis at CEA spiked with 234,235,236,238U, 237Np, 239,240Pu and 241Am, as well as ~10 kg of an inactive material for testing dissolution procedures. Additionally, ČMI generated ~50*0,5L liquid RM aliquots of sea water spiked with natural U, 237Np, 239,240Pu and 241Am.
These materials were characterised in accordance with the requirements of ISO 17034 by interlaboratory studies between the project partners, using techniques developed in the project.
Keywords: mass spectrometry; reference material; actinides