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

Abstract

Table of contents

Timetable

Plenary Lectures

Oral Sessions (Day1, Day2, Day3)

Poster Presentations (Day1, Day2, Day3)

Workshops

Luncheon Seminars (Day1, Day2, Day3)

Oral Sessions

Day 3, May 13（Wed.）　8:45-9:05　Room C (1101/02)

3C-O12-0845　　PDF

Tracing the origin of excavated amber: Sr isotope analysis of small-sized samples

(1JAMSTEC, 2Kwansei Gakuin Univ., 3GIRCP)
oShigeyuki Wakaki1, Masaharu Tanimizu2, Naomi Ueda3

Provenance analysis of excavated amber was performed by Rb-Sr isotope systematics. A mass spectrometric technique by thermal ionization mass spectrometry was developed to analyze the radiogenic Sr isotope ratio with a Sr sample size of sub-ng to ng. Analysis of the Sr reference material NIST SRM 987 with a sample size of 1 ng showed an external reproducibility of 47 ppm, which is precise enough to distinguish Sr isotopic signature of different geologic origins in this study. The analysis of the ambers from five different domestic locations hints on discriminating the locations using Rb-Sr isotope analysis.