Dataset: cal_iso
Data Citation:
Granger, J., Bourbonnais, A., Wilson, S. (2019) Calibration of the Isotope Ratio Mass Spectrometer vs. aliquots of 15N2 gas diluted in air then helium. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-10-02 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.778000.1 [access date]
Terms of Use
This dataset is licensed under Creative Commons Attribution 4.0.
If you wish to use this dataset, it is highly recommended that you contact the original principal investigators (PI). Should the relevant PI be unavailable, please contact BCO-DMO (info@bco-dmo.org) for additional guidance. For general guidance please see the BCO-DMO Terms of Use document.
DOI:10.1575/1912/bco-dmo.778000.1
Principal Investigator:
Julie Granger (University of Connecticut, UConn)
Co-Principal Investigator:
Annie Bourbonnais (University of Massachusetts Dartmouth, UMass Dartmouth)
Samuel Wilson (University of Hawaii)
BCO-DMO Data Manager:
Mathew Biddle (Woods Hole Oceanographic Institution, WHOI BCO-DMO)
Version:
1
Version Date:
2019-10-02
Restricted:
No
Validated:
Yes
Current State:
Final no updates expected
Calibration of the Isotope Ratio Mass Spectrometer vs. aliquots of 15N2 gas diluted in air then helium
Abstract:
In order to verify that measurements of the 15N2 atom% of dissolved N2 gas samples effectuated by Membrane Inlet Mass Spectrometry are accurate, we compared these to corresponding measurements of parallel samples on a Delta V Isotope Ratio Mass Spectrometer (IRMS). To this end, we first ensured that the IRMS returns accurate 15N2 atom% values, by measuring the 15N2 atom% of a serial dilutions of a 15N2 gas stock in air and helium. This calibration is documented herein, showing that IRMS measurements in the experimental range were accurate, as expected