Title: Calibrated Measurements of the Isotopic Composition and Atomic Weight of the Natural Li Isotopic Reference Material IRMM-016.
Authors: QI Hai pingTAYLOR P.d.p.BERGLUND MichaelDE BIEVRE P.
Citation: Intern. Journal of Mass Spectrometry and Ion Processes vol. 171 p. 263-268
Publication Year: 1997
JRC N°: JRC14924
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC14924
Type: Articles in periodicals and books
Abstract: The isotope abundance ratio of lithium in the Li isotopic reference material IRMM-016 was redetermined by thermal ionisation mass spectrometry by means of synthetic isotope mixtures. This resulted in an absolute ratio n(6-Li)/(7-Li) of 0.08212+/- 0.00028, and corresponding isotope abundances of 7.589+/- 0.024 amount% 6-Li, 92.411+/-0.024 amount% 7-Li and an atomic weight of lithium of 6.94005+/-0.00024. Uncertainties are expanded uncertainties using a coverage factor of two.
JRC Directorate:Health, Consumers and Reference Materials

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