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中文名稱：Graphite Mineral 13C
英文名稱：Graphite Mineral 13C訂貨以英文名稱為準(zhǔn)。
產(chǎn)品編號：USGS24CAS：/
品牌：標(biāo)準(zhǔn)物質(zhì)產(chǎn)地：進(jìn)口
標(biāo)準(zhǔn)值：見證書分子式：/
規(guī)格 市場價(jià)(元) 折后價(jià)(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(xì)介紹
USGS24Graphite Mineral 13C
USGS24 was prepared by T. B. Coplen, U.S. Geological Survey, from Baker? technical grade graphite (96 percent smaller than 44 μm)[1]. Prior to splitting with a sample splitter, six spatially separated ~ 1 mg samples were analyzed to verify the isotopic homogeneity of the material. Peak to peak variation was 0.11‰. The carbon stable isotopic composition was re-evaluated in an interlaboratory calibration[2].
Analyte Value Unit SD R/I/C δ13C -16.049 ‰VPDB 0.035 C (R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
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