December 11, 2024
Journal Article
Round-robin analysis of highly depleted lithium for Generation IV nuclear reactor applications
Abstract
Lithium reference materials containing unnaturally high abundances of Li-7 are not currently available, which poses quality control problems for high depleted lithium materials required for Generation IV nuclear reactors. This study presents an interlaboratory comparison of a lithium carbonate (NIST SRM924a) containing nominally natural isotopic abundances (~92.4 % Li-7) and a highly depleted lithium hydroxide material (~99.95 % Li-7). The natural lithium isotope abundances of NIST SRM924a are confirmed, and the 6Li/7Li ratio of the lithium hydroxide ranged from 0.000399 to 0.000436 with an average of 0.000428 ± 0.000023. Going forward this material can be used as quality control for analytical work involving highly depleted lithium.Published: December 11, 2024