GISP (Greenland Ice Sheet Precipitation) was prepared by W. Dansgaard, University of Copenhagen, from a sample of Greenland snow [1]. The GISP δ-values are based on the VSMOW-SLAP scale. They are statistically evaluated results of data from three interlaboratory comparisons [2, 3, 4]. GISP is intended for control of the successful calibration of internal laboratory standards realized by use of VSMOW2 and SLAP2 samples.
| Analyte | Value | Unit | SD | N | R/I/C |
| δ18O | -24.76 | ‰ | 0.09 | 83 | C |
| δ2H | -189.5 | ‰ | 1.2 | 75 | C |
(N) Number of accepted laboratory means which are used to calculate the recommended values. (SD) Standard uncertainties at 1 sigma.
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
References:
- HUT, G., Consultants' Group Meeting on Stable Isotope Reference Samples for Geochemical and Hydrological Investigations, IAEA, Vienna, 16 - 18 September 1985; report to the Director General. International Atomic Energy Agency, Vienna (1987).
- GONFIANTINI, R., Advisory group meeting on stable isotope reference samples for geochemical and hydrochemical investigations, IAEA, Vienna, 19-21 September 1983. Report to the Director General. International Atomic Energy Agency, Vienna (1984).
- ARAGUAS-ARAGUAS, L., ROZANSKI, K., Interlaboratory comparison for deuterium and oxygen-18 analysis of precipitation samples. Report, International Atomic Energy Agency, Vienna (1995).
- KOZIET, J., PICHLMAYER, F., ROSSMANN, A., Carbon, oxygen and hydrogen isotopic intercomparison of fruit and vegetable juices. IAEA TECDOC-825, International Atomic Energy Agency, Vienna (1995) 75-80.
