宇宙塵中のマグネシウムの同位体比の測定

概要

論文の詳細を見る
A preliminary experiment for study on cosmic dust was carried out with a new ion counting technique for mass spectrometry. The new technique made us possible to measure an isotopic composition of magnesiumin a less than 0.1μg-sized particle wkich had been collected in upper atmosphere or in the deep sea sediment. Since organic substances disturbed the mass peaks of magnesium, the measured values are not entirely reliable. Further experimental study to eliminate the organic peaks is in progress.
日本質量分析学会の論文