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IAEA-605 , Enriched Water,水中氢氧同位素，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-605 , Enriched Water,水中氢氧同位素... IAEA-605 , Enriched Water,水中氢氧同位素，IAEA同位素标样 2H and 18O in water samples , Eniched Water
Unit Size: 5 g
This water reference material is one out of three similar materials enriched in δ2H. The reference values for δ2H and δ18O in this water reference material were determined from the isotopic compositions of two parent waters by gravimetrical mixing: a demineralized natural water sample, and a highly 2H enriched water (specified as 2H fraction = 99.993 %, Sigma Aldrich, Zwijndrecht, The Netherlands). The isotopic composition of the natural water had been calculated from calibrated values submitted by five laboratories. The pure 2H water was also assessed for its oxygen isotopic composition. Independent validation measurements have been performed to ensure correctness of the applied mixing procedure. The reference material IAEA-605 is supplied in quantities of 5 g water in flame sealed glass ampoules.
| Certified value | Combined standard uncertainty (1σ LEVEL) | |
|---|---|---|
| δ2H | 5997.9 ‰ | 0.5 ‰ |
| δ18O | -3.02 ‰ | 0.04 ‰ |
| Information value * | Estimated uncertainty (1σ LEVEL) | |
|---|---|---|
| δ17O | -2.1 ‰ | 0.4 ‰ |
*) The δ17O values in this table are derived from mass 45 data of CO2, and are therefore depending on additional factors like the 13C abundance. These δ17O values are therefore given for information purposes only. For the moment, the δ17O scale relies only on its zero point as defined by VSMOW and is not a normalized 2-point scale.
This material is intended for application of any samples enriched in δ2H (e.g. bio-medical research) for calibration and quality control of such measurements. The limitation on sales of this material is set to four units of this material per laboratory per year.
References:
[1] FAGHIHI, V., VERSTAPPEN-DUMOULIN, B.M.A.A., JANSEN, H. G., VAN DIJK, G., AERTS-BIJMA, A. T., KERSTEL, E.R.T., GRÖNING, M., MEIJER, H.A.J., A new high-quality set of singly (2H) and doubly (2H and 18O) stable isotope labeled reference waters for biomedical and other isotope-labeled research, Rapid Commun. Mass Spectrom. 29 2015 311–321, (wileyonlinelibrary.com) DOI: 10.1002/rcm.7108.
