Instrument: Isotope-ratio Mass Spectrometer

Instrument Short Name: IR Mass Spec; IRMS
(http://vocab.nerc.ac.uk/collection/L05/current/LAB16/)
Instrument Description:

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).

PI supplied instrument name: GC-IRMS
Dataset-specific description

Samples for DIC analysis were acidified with phosphoric acid, and measured by GC-IRMS as described (Chanton et al. 2012).