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中文名称：Calcite Mineral 13C and 18O
英文名称：Calcite Mineral 13C and 18O订货以英文名称为准。
产品编号：NBS18CAS：/
品牌：标准物质产地：进口
标准值：见证书分子式：/
规格 市场价(元) 折后价(元) 供货周期 数量 加入购物车 0.5g 0.00 0.00 3-4周 加入购物车
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产品详细介绍
NBS18Calcite Mineral 13C and 18O
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 (Recommended/Information/Certified)
