IAEA-N-1

• Unit Size: 0.5 g
• Price per Unit: 200 EUR
• Report: TECDOC-825 (pdf)
• Date of Release: 9/1/1983
• Reference Sheet: download (pdf)
• Contact point: Analytical-Reference-Materials.Contact-Point@iaea.org

​Reference material IAEA-N-1 is aimed at δ¹⁵N calibrations.​

IAEA-N-1 is a relatively coarse grained salt of ammonium sulfate [(NH₄)₂ SO₄] prepared by E. Salati, CENA (Centro de Energia Nuclear na Agricultura), Brazil, in the period of 1978 to 1983 [1, 2]. Its δ¹⁵N value is determined using data from several interlaboratory comparisons and assessments [2-5].

​References:

1. GONFIANTINI, R., Standards for stable isotope measurements in natural compounds, Nature 271 (1978) 534-536.
2. GONFIANTINI, R., Report on an advisory group meeting on stable isotope reference samples for geochemical and hydrochemical investigations, Vienna, 19 - 21 Sept. 1983. IAEA, Vienna, Austria (1984).
3. BÖHLKE, J.K., GWINN, C.J., COPLEN, T.B., New reference materials for nitrogen isotope ratio measurements, Geostandards Newsletter 17 1 (1993) 159-164.
4. 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) 526-529.
5. 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 (1995) 51-66.