Expanded uncertainty modeling of the uranium isotope dilution standards

Hasozbek A.

JOURNAL OF ANALYTICAL SCIENCE AND TECHNOLOGY, vol.12, no.1, 2021 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 12 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.1186/s40543-021-00265-7
  • Journal Name: JOURNAL OF ANALYTICAL SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Uranium isotope dilution, Expanded uncertainty, Thermal ionization mass spectrometry, Certified reference material
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this paper, a statistical uranium isotope dilution mass spectrometry approach is presented to simulate the wide range of spike-sample mixed ratios of U-235/U-238, in terms of their related expanded uncertainties and uncertainty budget indexes. To obtain the lowest expanded uncertainty in uranium isotope dilution mass spectrometry (U-IDMS) technique, uranium certified materials of U-CRM 112A (spike) and U-CRM 149 (treated as unknown) are statistically employed and simulated. The simulated data is further applied to project U-IDMS samples by using the "Guide to the Expression of Uncertainty in Measurement (GUM)" software.