Essex, R.
, Mann, J.
, Williams, R.
, Kinman, W.
, Hubert, A.
and Bennett, M.
(2017),
New thorium-229 standard reference material, Applied Radiation and Isotopes, [online], https://doi.org/10.1016/j.apradiso.2017.07.050
(Accessed April 26, 2024)
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New thorium-229 standard reference material
Published
Author(s)
, , Ross W. Williams, William S. Kinman, Amelie Hubert, Megan E. Bennett
Abstract
A new reference material, preliminarily designated as SRM 3059, was characterized for 229Th molality (molg-1) and thorium isotope amount ratios. This SRM is intended for use in nuclear forensic analyses as an isotope dilution mass spectrometry spike. The value and expanded uncertainty (k = 2) for the 229Th molality is (1.1498 ± 0.0016) 10-10 mol g-1 solution. The values and expanded uncertainty (k = 2) for the n(230Th)/n(229Th) ratio is (5.18 ± 0.26) 10-5 and the n(232Th)/n(229Th) ratio is (3.815 ± 0.092) 10-4.Citation
Applied Radiation and Isotopes
Volume
134
Pub Type
Journals
Download Paper
Keywords
thorium, isotope dilution mass spectrometry, nuclear forensics, radiochronometry, reference material
Citation
Created July 26, 2017, Updated June 24, 2021