Gas Chromatography Isotope Ratio Mass Spectrometer (GC IRMS)
Gas Chromatography Isotope Ratio Mass Spectrometer (GC IRMS)
Gas Chromatography Isotope Ratio Mass Spectrometer (GC IRMS)
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…And How Does This Work?• 12 C is the most abundant form of carbon on theplanet• 98.89% of the Earth’s carbon is 12 C• The remaining 1.11% is 13 C and 14 C• We used methane with 13 C carbon so that it wouldbe easier to track13CH 413CH 413CH 4Liquid from sediment13CH 413CH 4Anoxic sediment layer