IAEA-CH-7

• Unit Size: 3.6 g
• Price per Unit: 150 EUR
• Report: n.a.
• Date of Release: 4/1/1987
• Reference Sheet: download (pdf)
• Contact point: Analytical-Reference-Materials.Contact-Point@iaea.org

​​​​International Chemical Safety Card (ICSC): ICSC_1488

IAEA-CH-7 is a secondary reference material. Its intended use is as calibrant when δ¹³C and δ²H are determined in organic materials using IRMS (Isotope Ratio Mass Spectrometry) coupled with an EA (Elemental Analyser) and Pyrolizer, for obtaining traceability of the data to the VPDB δ¹³C scale and VSMOW-SLAP δ²H scale, respectively.  

IAEA-CH-7 (formerly PEF-1) was prepared by H. Gerstenberger and M. Herrmann, Zentralinstitut für Isotopen- und Strahlenforschung, Leipzig, Germany [1].

Details about the characterization of IAEA-CH-7 are reported in [2] and [3].

References:

1. ​GERSTENBERGER, H., HERRMANN, M., Report on the intercomparison for the isotope standards Limestone KH2 and Polyethylene Foil PEF 1, ZfI-Mitteilungen 66 (1983) 67-83.
2. COPLEN, T.B., BRAND, W.A., GEHRE, M., GRÖNING, M., MEIJER, H.A.J., TOMAN, B., VERKOUTEREN, R.M., New guidelines for δ¹³C measurements, Anal. Chem. 78 (2006) 2439-2441.
3. SCHIMMELMANN, A., QI H., COPLEN, T.B., BRANDT, W.A., FONG, J., MEIER-AUGENSTEIN, W., KEMP, H.F., TOMAN, B., ACKERMANN, A., ASSONOV, S., AERTS-BIJMA, A.T., BREICHA, R., CHIKARAISHI, Y., DARWISH, T., ELSNER, M., GEHRE, M., GEILMANN, H., GROENING, M., HELIE, J.F., HERRERO-MARTIN, S., MEIJER, H.A.J., SAUER, P.E., SESSION A.L., WERNEN R.A. Organic Reference Materials for Hydrogen, Carbon, and Nitrogen Stable Isotope-Ratio Measurements: Caffeines, n‑Alkanes, Fatty Acid Methyl Esters, Glycines, L‑Valines, Polyethylenes, and Oils. Anal. Chem. 88 (2016) 4294−4302