Measurement of isotopic composition of ''O-16 oxygen'' enriched to 99.99 atom percent

被引：2

作者：

Liu, YZ

Masuda, A

机构：

[1] Department of Chemistry, University of Electro-Communications, Chofu

来源：

PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES | 1997年 / 73卷 / 04期

关键词：

Negative thermal ionization mass spectrometry; oxygen isotopes; O-16-enriched oxygen; removal of oxygen isotope interference;

D O I：

10.2183/pjab.73.59

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The isotopic composition of O-16-enriched oxygen was measured based on the negative thermal ionization mass spectrometry of ReO4- ion. The resulting values are 0.00245, 0.00605 and 99.9915%, respectively, for O-18, O-17 and O-16. This composition endorses that the use of this oxygen gas to form the negative oxide ion enables us to dispense with the correction for the isobaric interferences due to oxygen isotopes O-17 and O-18. Also it is exhibited that the logarithm of relative depletion factor is a nearly linear or rather parabolic function of the difference in mass number.

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页码：59 / 61

页数：3

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