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: isotope ratio mass spectrometer
Dataset-specific description

Sediment bound 15N-NH4+ enrichment is measured using the azide hypobromide method (Zhang et al. 2007) and are run on the isotope ratio mass spectrometer (IRMS).