日本質量分析学会 第70回質量分析総合討論会会

演題概要

オーラルセッション

第3日 6月24日(金) 14:40~15:00 D会場(413,414)

高時間分解能多重検出器型ICP質量分析計による隕石ナノ粒子の個別同位体分析

(東大院理)
沼倫加赤宗舞栗原かのこo平田岳史

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.