NSVEC, Nitrogen Gas-N2
Inorganic , Gas
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o
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Unit Size: 7 ml
Report: IAEA-TECDOC-825
Date of Release:
Producing Laboratory:
NSVEC is a pure tank gas and was originally prepared by G. Junk and H. J. Svec, Iowa State University,
USA [1]; C. Kendall, U.S. Geological Survey then split the sample into several hundred aliquots [2]. The
15
δ N value of this reference material is the result of the statistical evaluation of an interlaboratory
comparison [3].
Analyte
15
δ N
Value
Unit
SD
R/I/C
-2.8
‰
0.2
C
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
References:
1.
JUNK, G., SVEC, H.J., The absolute abundance of the nitrogen isotopes in the atmosphere
and compressed gas from various sources, Geochim. Cosmochim. Acta 14 (1958) 234-243
2.
KENDALL, C., GRIM, E., Combustion tube method for measurement of nitrogen isotope ratios
using calcium oxide for total removal of carbon dioxide and water, Anal. Chem. 62 (1990) 526529.
3.
BÖHLKE, J.K., COPLEN, T.B., Interlaboratory comparison of reference materials for nitrogen
isotope ratio measurements. Proceedings of a consultants meeting held in Vienna, 1 - 3. Dec.
1993, IAEA-TECDOC-825, IAEA, Vienna, Austria (1995) 51-66.