THE ABSOLUTE ISOTOPIC COMPOSITION OF EUROPIUM

被引：23

作者：

CHANG, TL ^{[1
]}

QIAN, QY ^{[1
]}

ZHAO, MT ^{[1
]}

WANG, J ^{[1
]}

机构：

[1] NATL RES CTR CERTIFIED REFERENCE MAT,BEIJING 100013,PEOPLES R CHINA

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1994年 / 139卷

关键词：

ATOMIC WEIGHT; EUROPIUM; ISOTOPIC ABUNDANCE; THERMAL IONIZATION;

D O I：

10.1016/0168-1176(94)04076-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Calibrated mass spectrometric measurements on highly enriched isotopes of europium in the form of 99.96% pure sesquioxide were carried out with a thermal ionization mass spectrometer, yielding an absolute isotopic composition of 47.810(42) at.% Eu-151 and 52.190(42) at.% Eu-153, and the atomic weight of europium as 151.9644(9) with error given as 2sigma. No isotopic fractionation was found in terrestrial normal europium materials.

引用

页码：95 / 102

页数：8

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