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

Abstract

Table of contents

Timetable

Plenary Lectures

Society Featured Lecture

Oral Sessions (Day1, Day2, Day3)

Poster Presentations (Day3)

Workshops

Lunchtime Seminars (Day1, Day2, Day3)

Poster Presentations

Day 3, May 21（Fri.）　　Room P1 (Zoom)

3P-38　　PDF

Elimination of Isobaric and Polyatomic Interferences for Isotopic Analysis of the Elements though Ion-molecule Interaction in ICP-MS/MS

(Kwansei Gakuin Univ.)
oTakahiro Morimoto, Masaharu Tanimizu

We investigated the ion-molecule interaction between 87Sr+ and various reaction gases to eliminate the isobaric interference of 87Rb+ on 87Sr+ to apply for Rb-Sr radiometric dating, because age of igneous rocks are determined based on the beta- decay of 87Rb to 87Sr with the half-life of 4.88×1010 years. We aimed to determine 87Sr/86Sr isotope ratio without sample pretreatments by separating the isobaric interference within ICP-MS/MS by ion-molecule interaction by changing the type of gases, gas flow rate, etc.