Calibrated Measurements of the Isotopic Composition and Atomic Weight of the Natural Li Isotopic Reference Material IRMM-016.
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.
QI Hai Ping;
TAYLOR P.D.P.;
BERGLUND Michael;
DE BIEVRE P.;
1997-05-28
JRC14924
https://publications.jrc.ec.europa.eu/repository/handle/JRC14924,
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