Absolute isotopic composition and atomic weight of erbium

被引：23

作者：

Chang, TL ^{[1
]}

Zhao, MT

Li, WJ

Wang, J

Qian, QY

机构：

[1] Peking Univ, Dept Chem, Beijing 100871, Peoples R China

[2] Natl Ctr Certified Reference Mat, Beijing 100013, Peoples R China

[3] Beijing Univ Sci & Technol, Dept Chem, Beijing 100083, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 1998年 / 177卷 / 2-3期

关键词：

erbium; isotopic abundance; atomic weight;

D O I：

10.1016/S1387-3806(98)14057-5

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 erbium in the form of oxides of well-defined purity were carried out by using a thermal ionization mass spectrometer, yielding an absolute isotopic composition of 0.139(3) at. % Er-162, 1.601(2) at. % Er-164, 33.503(24) at. % Er-166, 22.869(6) at. % Er-167, 26.978(12) at, % Er-168, and 14.910(24) at. % Er-170, and the atomic weight of erbium as 167.2591(9) with an uncertainty given on the basis of 95% confidence limit. No isotopic fractionation was found in terrestrial normal erbium materials. (Int J Mass Spectrom 177 (1998) 131-136) (C) 1998 Elsevier Science B.V.

引用

页码：131 / 136

页数：6

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