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Stable isotope ratio mass spectrometers VG Tracermass

a picture of Tracermassa picture of Tracermassa picture of Tracermass
Microanalysis of oxygen isotopes in silicates
Ar-F laser and reaction chamber
VG Tracermass

machine specifications:

  • Triple collector continuous flow IRMS (Isotope Ratio Mass Spectrometer) devoted specifically for 17O/16O and 18O/16O ratio analysis using O2 as a measuring gas and He as a carrier gas. Refinement is under way.
  • Required sample size is less than 1μg.
  • On-line Ar-F laser-assisted fluorination system for O2 extraction is attached.


  • Precise δ17O and δ18O analysis of mineral constituents of meteorites, with an error less than 0.5 ‰ and spatial resolution of 100 µm.

person(s) whom users should contact: Ryoji TANAKA.