Materials with known 13C, 18O, and 7Li isotopic composition
RM 8564, CO2 Gas
Unit Size: 2 x 400 µmol
Price per Unit: 130 €
Date of Release: 1998
RM 8564* was prepared by R. M. Verkouteren, Surface and Microanalysis Science Division, Chemical Science and Technology Laboratory,
National Institute of Standards and Technology (NIST) [1,2]. It was first prepared in 1996 from research grade carbon dioxide (99.995%)
obtained from Scott Speciality Gases. This gas originated from the fermentation of C4 biomass (corn) in a grain distillery in the
Central United States. Its recommended δ13C and δ18O values were determined in international calibration exercises [3,4].
| Analyte | Value | Unit | | R/I/C |
|---|
| δ13C | -10.452 | ‰VPDB | 0.040 | C |
| δ18O | +0.2 | ‰VPDB | 0.1 | R |
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
* CO2-Biogenic, modern biomass origin
References:
- Verkouteren, R. M., Lagergren, E. S., and Velapoldi, T. A. (1998): Report of Analysis (NIST internal
report), 837 698, June 10, 1998, National Institute of Standards and Technology, Gaithersburg, MD.
- Verkouteren R.M. (1999): Preparation, characterization and value assignment of carbon dioxide isotopic reference materials: RMs 8562, 8563 and 8564. Analytical Chemistry, Am. Chem. Soc., 71 (20), 4740-4746.
- Verkouteren, R. M., Klinedinst D. B. (2003): Value assignment and uncertainty estimation of selected stable isotope reference materials: RMs 8543-8545, RMs 8562-8564, and RM 8566. NIST Special Publication 260-149, National Institute of Standards and Technology, Gaithersburg, USA, 58pp.
- Coplen T.B., Brand W.A., Gehre M., Gröning M., Meijer H.A.J., Toman B., Verkouteren R.M. (2006): New Guidelines for 13C Measurements. Anal. Chem. 78, 2439-2441.
