Gas Chromatography

Gas Chromatography-Mass Spectrometer

  • Analysis of gases and dissolved particles
  • Able to resolve complex mixtures of volatile components
  • Precise characterization of stable atmospheric species
  • CH4, N2O, CFCs and non-sticky organic molecules
  • All data on [CFCs] is obtained via GC-MS
  • Compounds are identified via their retention times and mass spectra
  • Quantitative
  • Little sample required
  • Thermal decomposition

Gas Chromatography