La-Ce isotope measurements by multicollector-ICPMS.

ABSTRACT: The ¹³⁸La-¹³⁸Ce decay system (half-life 1.02 × 10¹¹ years) is a potentially highly useful tool to unravel information about the timing of geological processes and about the interaction of geological reservoirs on earth, complementing information from the more popular ¹⁴⁷Sm-¹⁴³Nd and ¹⁷⁶Lu-¹⁷⁶Hf isotope systems. Previously published analytical protocols were limited to TIMS. Here we present for the first time an analytical protocol that employs MC-ICPMS, with an improved precision and sensitivity. To perform sufficiently accurate La-Ce measurements, an efficient ion-chromatographic procedure is required to separate Ce from the other rare earth elements (REE) and Ba quantitatively. This study presents an improved io

SUBMITTER: Schnabel C 

PROVIDER: S-EPMC5789583 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature