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中文名稱:Barium Sulfate Inorganic Pure Substance
英文名稱:Barium Sulfate Inorganic Pure Substance訂貨以英文名稱為準。
產(chǎn)品編號:NBS-127CAS:/
品牌:標準物質(zhì)產(chǎn)地:進口
標準值:見證書分子式:/
規(guī)格 市場價(元) 折后價(元) 供貨周期 數(shù)量 加入購物車 0.5g 0.00 0.00 3-4周 加入購物車
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產(chǎn)品詳細介紹
NBS-127Barium Sulfate Inorganic Pure Substance
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