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Stable isotope ratio mass spectrometers VG SIRA12

a picture of VG SIRA12a picture of VG SIRA12a picture of VG SIRA12
Laser fluorination in progress
Reaction chamber

machine specifications:

  • Dual inlet, triple collector IRMS (Isotope Ratio Mass Spectrometer) devoted specifically for 17O/16O and 18O/16O ratio analysis of meteorites, rocks and minerals, using O2 as a measuring gas.
  • On-line, laser-assisted fluorination system for O2 extraction.
  • Required sample size is normally 1-2 mg.


  • High precision δ17O and δ18O analysis of meteorites, rocks, minerals and oxide samples with precision of ±0.1 ‰.

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