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NBS 18 , Calcite
Inorganic , Mineral
Unit Size: 0.5 g
NBS 18 was prepared by I. Friedman, J. R. O’Neil and G. Cebula [1] of the U.S. Geological Survey. The material used for NBS 18 was a carbonatite from Fen, Norway, collected by B. Taylor, University of California, Davis, USA, and crushed by H. Friedrichsen, University of Tübingen, Federal Republic of Germany. The fraction between 88 μm and 440 μm was bottled as NBS 18. Its recommended δ13C value was determined in an international calibration study [2]. The recommended δ18O value is a mean from data of several interlaboratory comparisons [1,3,4].
| Analyte | Value | Unit | SD | R/I/C |
|---|---|---|---|---|
| δ13C | -5.014 | ‰VPDB | 0.035 | C |
| δ18O | -23.2 | ‰VPDB | 0.1 | R |
(R/I/C) Classification assigned to the property value for analyte (Recom
标准物质 IAEA稳定同位素标样，NBS18由天津欧捷科技有限公司为您提供，如想了解更多关于仪器鉴定用标准物质/标准品 IAEA稳定同位素标样，NBS18的报价、规格、厂家等信息，欢迎来电或留言咨询。除供应IAEA稳定同位素标样，NBS18外，天津欧捷科技有限公司还可为您提供：
国际原子能机构IAEA稳定同位素标样，IAEA-603，、
德国元素elementar,线状铜丝,05000699、
三氧化钨颗粒,11.02-0008,德国元素elementar仪器专用
