{243}$Am certified reference material for mass spectrometry

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 327; no. 1; pp. 495 - 504
• Main Authors: Jakopič, Rožle, Fankhauser, Adelheid, Aregbe, Yetunde, Richter, Stephan, Crozet, Marielle, Maillard, Christophe, Rivier, Cédric, Roudil, Danièle, Marouli, Maria, Tzika, Faidra, Altzitzoglou, Timotheos, Pommé, Stefaan
• Format: Journal Article
• Language: English
• Published: Springer Verlag 04-01-2021
• Subjects: Chemical Sciences; Spike; Isotope dilution mass spectrometry (IDMS); Nuclear safeguards; Am; Certifed reference material (CRM); Nuclear forensics
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-020-07521-x

The Joint Research Centre, in cooperation with the Commissariat à l’Energie Atomique et aux Energies Alternatives, produced a novel 243 Am spike reference material for mass spectrometry. Americium solution with an isotopic composition of 88% 243 Am and 12% 241 Am was used as the source for the preparation of the spike material. The certified value of 5.696 (11) nmol g −1 for the amount content of 243 Am and 0.136138 (54) for the n ( 241 Am)/ n ( 243 Am) amount ratio were assigned. The assigned values from mass spectrometry were confirmed by alpha-particle spectrometry, alpha-particle counting at a defined solid angle, and high-resolution gamma-ray spectrometry. Furthermore, an external validation of the certified values was obtained from the results of an interlaboratory comparison exercise, using this americium reference solution as the test sample.