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IAEA-CO-9 , Barium Carbonate,碳酸钡,IAEA同位素标样 天津欧捷科技有限公司代理奥地利IAEA原子能机构同位素标样,IAEA-CO-9 , Barium Carbonate,碳酸钡... IAEA-CO-9 , Barium Carbonate,碳酸钡,IAEA同位素标样 Inorganic , Mineral
Unit Size: 1.0 g
The IAEA-CO-9* material is barium carbonate powder. It was prepared by C. A. Brenninkmeijer, Atmospheric Division, National Institute for the Atmosphere and Hemisphere, Lower Hutt, New Zealand, using CO2 from natural gas and precipitation as carbonate by NaOH solution and barium sulfide [1]. Its recommended δ13C value was determined in an international calibration [2]. The recommended δ18O value is a mean from data of an interlaboratory comparison [1].
| Analyte | Value | Unit | SD | R/I/C |
|---|---|---|---|---|
| δ13C | -47.321 | ‰VPDB | 0.057 | C |
| δ18O | -15.6 | ‰VPDB | 0.2 | R |
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
[*] previously identified as IAEA-NZCH
