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中文名称：Quarz Sand Mineral 18O and 30Si
英文名称：Quarz Sand Mineral 18O and 30Si订货以英文名称为准。
产品编号：NBS28CAS：/
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
NBS28Quarz Sand Mineral 18O and 30Si
NBS-28 serves as the primary refence material (primary calibrator) for silicon δ29Si- δ30Si measurements defining the zero point of the δ-scale [1,2] and its 30Si//29Si/28Si ratios. In addition, NBS-28 serves as the refence material for δ18O in silicates.
Quartz sand for preparing NBS 28 was obtained by I. Friedman, U.S. Geological Survey from Corning Glass Company as. It was washed with acid to remove impurities and the fraction between 100 µm and 177 µm was separated and packed in 0.5 g units.
Analyte
Value
Unit
SD
R/I/C
δ18O
+9.6
‰VSMOW1
0.1
R
δ 29Si
0?
‰
-
C
δ30Si
0?
‰
-
C
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
[1] VSMOW scale
[?] by definition
