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High precision measurements of 17 O/ 16 O and 18 O/ 16 O ratios in H 2 O
Abstract
We have optimized the method of water fluorination using the solid reagent CoF 3 to produce O 2 . This allows isotope ratio measurements by dual‐inlet mass spectrometry with very high precision of 0.01 to 0.03‰ for both δ 17 O and δ 18 O. Using this method, δ 17 O and δ 18 O of atmospheric O 2 were determined as 12.08 and 23.88‰ vs. VSMOW, respectively. Likewise, δ 17 O and δ 18 O of GISP were −13.12 and −24.73‰, and for SLAP they were −29.48 and −55.11‰ vs. VSMOW, respectively. Analysis of these data in a ln( δ 17 O + 1) vs. ln( δ 18 O + 1) plot yields a line with a regression coefficient ( λ ) of 0.5279 ± 0.0001 (R 2 = 0.999999). We also determined the fractionation factors 17 α and 18 α in liquid‐vapor equilibrium, and found that the ratio ln 17 α /ln 18 α is constant (0.529 ± 0.001) over the temperature range 11.4 to 41.5°C. Copyright © 2005 John Wiley & Sons, Ltd.
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Horita, J., & Wesolowski, D. J. (1994) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(94)90096-5 · Cited by 940
Cited by
Brand, W. A., Assonov, S. S., & Coplen, T. B. (2010) · Pure and Applied Chemistry · doi:10.1351/pac-rep-09-01-05 · Cited by 385
Absolute isotopic abundance ratios and the accuracy of Δ47 measurements
Daëron, M., Blamart, D., Peral, M., & Affek, H. P. (2016) · Chemical Geology · doi:10.1016/j.chemgeo.2016.08.014 · Cited by 310
Guo, W., Mosenfelder, J. L., Goddard, W. A., & Eiler, J. M. (2009) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2009.05.071 · Cited by 262
John, C. M., & Bowen, D. (2016) · Rapid Communications in Mass Spectrometry · doi:10.1002/rcm.7720 · Cited by 247
Atomic weights of the elements 2007 (IUPAC Technical Report)
Wieser, M. E., & Berglund, M. (2009) · Pure and Applied Chemistry · doi:10.1351/pac-rep-09-08-03 · Cited by 220
Metadata
- Authors
- Barkan, E., & Luz, B.
- Venue
- Rapid Communications in Mass Spectrometry
- Publisher
- Wiley
- Published
- 2005-11-24
- Volume
- 19
- Issue
- 24
- Pages
- 3737-3742
- ISSN
- 0951-4198 (ISSN-L)
- 1097-0231
- OpenAlex
- W3184258599
- Cited by
- 492
- References
- 1
- FWCI
- 9.66
- Type
- journal article
- Language
- en
- Open access
- closed
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