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NBS-127 , Barium Sulfate,硫酸钡,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,NBS-127 , Barium Sulfate,硫酸钡... NBS-127 , Barium Sulfate,硫酸钡,IAEA同位素标样 Materials with known 34S/ 32 S isotopic composition
Unit Size: 0.5 g
International Chemical Safety Card (ICSC): ICSC_0827
NBS-127 barium sulfate was prepared by J. R. O'Neil, U.S. Geological Survey, by ion exchange of sulfate in seawater from Monterey Bay, California, USA [1,2]. The isotopic values of the reference material NBS-127 are the results of the statistical evaluation of interlaboratory comparisons.
| Analyte | Value | Unit | SD | R/I/C |
|---|---|---|---|---|
| δ18O | +9.3 | ‰VSMOW | 0.4 | R |
| δ34S | +20.3# | ‰VCDT | 0.4 | R |
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
[#] δ34S value versus CDT
