Instrument: Isotope-ratio Mass Spectrometer
The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).
Colman Lab: All seawater samples were processed on a GasBench II (Thermo, Bremen, Germany) with a CTC GC Pal (CTC analytics) and interfaced to a Delta V Plus isotope ratio mass spectrometer (Thermo)