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|Title:||Updated Certified Values of the Lithium Isotopic Reference Materials IRMM-016, IRMM-015 and IRMM-615|
|Authors:||DUTA Steluta; BERGLUND Michael; TAYLOR Philip|
|Citation:||RAPID COMMUNICATIONS IN MASS SPECTROMETRY vol. 23 no. 6 p. 937-938|
|Publisher:||JOHN WILEY & SONS LTD|
|Type:||Articles in periodicals and books|
|Abstract:||The current certificates issued by IRMM are based on the old lithium mixtures. Since then, new synthetic mixtures were prepared. In this paper, we present the updated certified values of isotopic reference materials IRMM-016, IRMM-015 as well as IRMM-615, based on the new synthetic mixture of highly enriched lithium isotopes. The new re-evaluated value of the certified isotope ratio of IRMM-016 was taken into account for the certification of IRMM-015. The re-certification of isotopic reference material (spike) IRMM-615 comes with certified amount content and a certified isotope amount ratio. This material is based on the same Li2CO3 base material as IRMM-015. All the isotope amount ratios were determined by thermal ionization mass spectrometry (TIMS), the most commonly applied technique for lithium isotopic ratio measurements.|
|JRC Institute:||Institute for Reference Materials and Measurements|
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