| Titel: |
Titel:
Progress achieved in EURAMET project 21GRD09 MetroPOEM: Metrology for the harmonisation of measurements of environmental pollutants in Europe
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| Autoren: |
Autoren:
Arnold, Dirk, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 6.1, Radioaktivität, ORCID: 0000-0002-6235-9428Andrease, Rasmus, Aarhus Universitet, Aarhus, DENMARK Canku, Oktay, Turkiye Bilimsel ve Teknolojik Arastirma Kurumu, Ankara, TÜRKIYE Chambon, Lucille, Commissariat à l'énergie atomique et aux énergies alternatives , Paris, FRANCE Christl, Marcus, Eidgenössische Technische Hochschule Zürich, Zürich, SWITZERLAND Alle Autoren anzeigen (34) |
| Beitragende: |
Beitragende:
HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
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| Seiten: |
Seiten:
24
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| Sprachen: |
Sprachen:
en
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| DOI: |
DOI:
10.7795/810.20250923
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| Art der Ressource: |
Art der Ressource:
PTB: Konferenzartikel,
DINI: ConferencePaper,
DataCite: ConferencePaper
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| Verlag: |
Verlag:
Physikalisch-Technische Bundesanstalt (PTB)
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| Rechte: |
Rechte:
https://creativecommons.org/licenses/by/4.0/CC-BY 4.0 |
| Beziehungen: |
Beziehungen:
IsIdenticalTo: DOI 10.1016/j.apradiso.2025.112182
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| Datumsangaben: |
Datumsangaben:
Verfügbar:
2025-09-24
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| Datei: |
Datei:
Datei herunterladen
(application/pdf)
993.2 KB
MD5 Prüfsumme: f8b100725d97bb1658cac054daadf0da SHA256 Prüfsumme: 6f3edb56d6caa4073c194831796a9ae5b0cb12261225dad669ed44a47c20e72c |
| Stichwörter: |
Stichwörter:
Environmental pollutants ;
European Green Deal ;
mass spectrometry ;
reference material ;
traceability ;
interlaboratory comparison ;
harmonised method
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| Zusammenfassung: |
Zusammenfassung:
The European Green Deal’s ambition for zero pollution requires development of highly sensitive techniques to detect ultra-low amounts of pollutants and isotope ratios, where mass spectrometry is a key method. The MetroPOEM project bridges the traceability gap between activity and mass-based measurements.
Low level radioactive standard solutions (90Sr, 237Np, 234U, 236U, natural uranium (Unat), 239Pu, 240Pu, 241Am, 239,240Pu) were distributed to 18 partner laboratories for measurement by mass spectrometric and decay counting techniques. The results and data analysis will be published separately. SI-traceable high precision methods were developed for isotope ratio determination of Li, B, Cr, Cd, Ni, Sb, Pb and U in seawater. Method development addressed analyte separation from the matrix, evaluation of calibration approaches, isotope fractionation corrections and uncertainty estimation. Seawater (250 L) was taken from the German North Sea exclusive economic zone (DE-EEZ) to develop two certified reference materials (CRMs). Part of this material was used to generate a CRM with SI traceability for isotope ratios of Li, B, Cr, Cd, Ni, Sb, Pb and U. The second part was used to generate a seawater CRM, spiked with Unat, 237Np, 239,240Pu and 241Am. A solid silica-based CRM, spiked with Unat, 237Np, 239,240Pu and 241Am, was produced by solgel synthesis, with ~10 kg of inactive material for method development. These materials were characterised in accordance with ISO 17034 by interlaboratory studies between project partners, using techniques developed in the project. Two Good Practice Guides, on (i) measurement of radioactivity by mass spectrometry, and (ii) sample treatment, uncertainties, and mass bias quantification, are in draft. |
| Bemerkung: |
Bemerkung:
Part of special issue 24th International Conference on Radionuclide Metrology and its applications (ICRM 2025)
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| Förderung: |
Förderung:
European Commission (EC), ISNI: 0000 0001 2162 673X, Grant Title: Metrology for the harmonisation of measurements of environmental pollutants in Europe, Grant Number: EPM 21GRD09 MetroPOEM
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-OAR
