Thermo DELTA V Advantage

Gas chromatography combustion isotope ratio mass spectrometry (GC/IRMS) is a highly specialised instrumental technique used to ascertain the realative ratio of light stable isotopes of carbon (13C/12C), hydrogen (2H/1H), nitrogen (15N/14N) or oxygen (18O/160) in individual compounds separated from often complex mixtures of components. The ratio of these isotopes in natural materials varies slightly as a result of isotopic fractionation during physical, chemical and biological processes resulting, in some cases, with the relative isotopic ratio of specific compounds being highly diagnostic of key environmental processes. Compound-specific isotope analyses for some compounds are available for compounds such as amino acid, their derivatives, steroids and fatty acids.