Uranium isotope dilution mass spectrometry using NBL certified reference materials as spikes

Hasozbek A., Mathew K. J., Orlowicz G., Hui N., Srinivasan B., Soriano M., ...More

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, vol.296, no.1, pp.447-451, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 296 Issue: 1
  • Publication Date: 2013
  • Doi Number: 10.1007/s10967-012-2050-1
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.447-451
  • Keywords: Isotope dilution mass spectrometry, Spike, Uranium concentration, Certified reference material, CRM 112-A, CRM 115
  • Dokuz Eylül University Affiliated: No


The isotope dilution mass spectrometry method of analysis is used to determine the elemental uranium contents in a wide variety of uranium bearing materials. The method is based on the mass spectrometric analysis of a mixture prepared by diluting the sample to be analyzed with a spike of distinctly different isotopic composition to that of the sample. In this work, a beginning is made to identify suitable candidates among the multitude of certified reference materials (CRMs) available at the New Brunswick Laboratory to supplant the use of U-233 which remains now as the preferred spike nuclide. The results of the study presented here identify CRM 112-A (of normal isotopic composition) and CRM 115 (depleted uranium composition) as suitable candidates to replace U-233 as spike material for determining uranium in high enriched uranium materials, and CRM 116 (U-235 mass fraction of > 90 %) for determining uranium in materials of low enrichment.