咨询热线
13820734559
QQ：1454116470
天津欧捷科技代理瑞士santis,英国labco,美国alpha,德国元素elementar,美国thermo等品牌耗材
咨询热线
13820734559
QQ：1454116470
IAEA-CH-3,Cellulose,纤维素,IAEA同位素标样 天津欧捷科技有限公司代理奥地利IAEA原子能机构同位素标样,IAEA-CH-3,Cellulose,纤维素... IAEA-CH-3,Cellulose,纤维素,IAEA同位素标样 Materials with known 2H, 13C, 15N and 18O isotopic composition
Unit Size: 0.5 g
IAEA-CH-3 was prepared at the IAEA from a large batch of cellulose produced in 1989 from the harvest of about 40 years old Swedish trees as 14C quality control material IAEA-C3. Three kilogram of this cellulose stored in sheets was milled down to a fine powder and homogenized. The final calibration of the material was performed in 2004 by a small group of experienced laboratories together with the re-calibration of most of the other organic carbon stable isotope reference materials available at IAEA [1].
| Analyte | Value | Unit | SD | R/I/C |
|---|---|---|---|---|
| δ13C | -24.724 | ‰VPDB | 0.041 | C |
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
References:
COPLEN, T.B., BRAND, W.A., GEHRE, M., GRÖNING, M., MEIJER, H.A.J., TOMAN, B., VERKOUTEREN, R.M., New guidelines for δ13C measurements. Anal. Chem. 78 (2006) 2439-2441.
