Measurement of Isotopic Composition of“O-16 Oxygen”Enriched to 99.99 Atom Percent

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概要

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• The isotopic composition of 16O-enriched oxygen was measured based on the negative thermal ionization mass spectrometry of ReO-4 ion. The resulting values are 0.00245, 0.00605 and 99.9915%, respectively, for 18O, 17O and 16O. 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 17O and 18O. 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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著者

• Masuda Akimasa

  Department Of Chemistry Faculty Of Science The University Of Tokyo

• LIU Yongzhong

  Department of Chemistry, The University of Electro-Communications

• MASUDA Akimasa

  Department of Chemistry, The University of Electro-Communications

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