Articles | Volume 8, issue 2
Atmos. Meas. Tech., 8, 811–822, 2015
https://doi.org/10.5194/amt-8-811-2015
Atmos. Meas. Tech., 8, 811–822, 2015
https://doi.org/10.5194/amt-8-811-2015
Research article
18 Feb 2015
Research article | 18 Feb 2015

Continuous-flow IRMS technique for determining the 17O excess of CO2 using complete oxygen isotope exchange with cerium oxide

D. J. Mrozek et al.

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Cited articles

Alexander, B., Vollmer, M. K., Jackson, T., Weiss, R. F., and Thiemens, M. H.: Stratospheric CO2 isotopic anomalies and SF6 and CFC tracer concentrations in the Arctic polar vortex, Geophys. Res. Lett., 28, 4103–4106, 2001.
Assonov, S. S. and Brenninkmeijer, C. A. M.: A new method to determine the 17O isotopic abundance in CO2 using oxygen isotope exchange with a solid oxide, Rapid Commun. Mass Spectrom., 15, 2426–2437, 2001.
Assonov, S. S. and Brenninkmeijer, C. A. M.: On the 17O correction for CO2 mass spectrometric isotopic analysis, Rapid Commun. Mass Spectrom., 17, 1007–1016, 2003.
Barkan, E. and Luz, B.: High-precision measurements of 17O/16O and 18O/16O ratios in CO2, Rapid Commun. Mass Spectrom., 26, 2733–2738, 2012.
Bhattacharya, S. K. and Thiemens, M. H.: Effect of Isotopic Exchange Upon Symmetry Dependent Fractionation in the O+CO CO2 Reaction, Zeitschrift für Naturforschung, , J. Phys. Sci., 44, 811–813, 1989.
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Our analytical system is a promising tool for investigating the triple oxygen isotope composition of CO2 from stratospheric air samples of volumes 100ml and smaller. The method is designed for measuring air samples with CO2 mole fractions between 360 and 400ppm, and it is the first fully automated analytical system that uses CeO2 as the isotope exchange medium.