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Determination of the isotopic composition of hafnium using MC-ICPMS

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1088/1681-7575/ab2995
AuthorSearch for: 1; Search for: 1ORCID identifier: https://orcid.org/0000-0002-3349-5535; Search for: ; Search for: 1ORCID identifier: https://orcid.org/0000-0002-2377-2615; Search for: 1ORCID identifier: https://orcid.org/0000-0002-6896-8603
Affiliation
  1. National Research Council of Canada. Metrology Research Centre
FormatText, Article
SubjectMC-ICPMS; hafnium isotope ratio; mass bias; regression mass bias correction
Abstract
Despite the numerous important applications of hafnium isotopes in geological science, and the advances in multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS), hafnium still lacks calibrated measurements of its isotope ratios and, in turn, isotopic abundances and atomic weight. In this study, we determined the isotopic composition of hafnium in four commercial hafnium reagents, including a commonly used hafnium standard (JMC-475) and a NRC candidate isotopic reference material (HALF-1) by MC-ICPMS. The state-of-the-art regression model with NIST SRM 989 isotopic rhenium as calibrator was used to correct instrumental isotopic fractionation without reliance on other hafnium standards, normalizing isotope ratios, or exponential mass-bias fractionation model.
Publication date
PublisherIOP
In
  • Metrologia 56, no. 4, 044008: 1–8.
LanguageEnglish
Peer reviewedYes
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Record identifier10fbe683-2dd6-481b-be9c-61f09be65906
Record created2019-07-25
Record modified2024-08-12
Date modified: