The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan

Abstract

Oral Sessions

Day 3, June 24(Fri.) 14:40-15:00 Room D (413 and 414)

Isotopic Analyses of Pt and Ir in Chondrite Nanoparticles using High-time Resolution Multiple Collector-ICPMS Technique

(Univ. Tokyo)
Norika Numa, Mai Akamune, Kanoko Kurihara, oTakafumi Hirata

Isotopic analyses of Pt and Ir from chondrite matrix were conducted by a multiple collector-ICP-mass spectrometry equipped with high-time resolution ion counters. To obtain reliable data, correction of counting loss due to detector dead time is highly desired. We have developed new correction method for the dead time. With the technique developed here, Pt and Ir isotopic data can be derived from individual nanoparticles from chondrite matrix. Isotopic signature obtained here will be discussed.