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中文名稱：CO2 Gas Inorganic Gas
英文名稱：CO2 Gas Inorganic Gas訂貨以英文名稱為準(zhǔn)。
產(chǎn)品編號(hào)：RM8564CAS：/
品牌：標(biāo)準(zhǔn)物質(zhì)產(chǎn)地：進(jìn)口
標(biāo)準(zhǔn)值：見(jiàn)證書分子式：/
規(guī)格 市場(chǎng)價(jià)(元) 折后價(jià)(元) 供貨周期 數(shù)量 加入購(gòu)物車 2*400ymol 0.00 0.00 3-4周 加入購(gòu)物車
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產(chǎn)品詳細(xì)介紹
RM8564CO2 Gas Inorganic Gas
RM 8564* carbon dioxide was prepared by R. M. Verkouteren, Surface and Microanalysis Science Division, Chemical Science and Technology Laboratory, National Institute of Standards and Technology (NIST) [1,2]. It was first prepared in 1996 from research grade carbon dioxide (99.995%) obtained from Scott Speciality Gases. This gas originated from the fermentation of C4 biomass (corn) in a grain distillery in the Central United States. Its recommended δ13C and δ18O values were determined in international calibrations [3,4].
Analyte Value Unit SD R/I/C δ13C -10.45 ‰VPDB 0.04 C δ18O +0.06 ‰VPDB 0.20 R (SD) Combined standard uncertainty
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
[*] CO2 -Biogenic, modern biomass originReferences:
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VERKOUTEREN, R.M., LAGERGREN, E.S., VELAPOLDI, T.A., Report of Analysis (NIST internal report), 837 698, June 10, 1998; National Institute of Standards and Technology, Gaithersburg, MD (1998).
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VERKOUTEREN, R.M., Preparation, characterization and value assignment of carbon dioxide isotopic reference materials: RMs 8562, 8563 and 8564, Anal. Chem 71 20 (1999) 4740-4746.
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VERKOUTEREN, R.M., KLINEDINST, D.B., Value assignment and uncertainty estimation of selected stable isotope reference materials: RMs 8543-8545, RMs 8562-8564, and RM 8566. NIST Special Publication 260-149, National Institute of Standards and Technology, Gaithersburg, MD (2003).
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COPLEN, T.B., BRAND, W.A., GEHRE, M., GR?NING, M., MEIJER, H.A.J., TOMAN, B., VERKOUTEREN, R.M., New guidelines for 13C measurements, Anal. Chem. 78 7(2006) 2439-2441.
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