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Improvements in Mass Spectrometers for the Measurement of Small Differences in Isotope Abundance Ratios
Abstract
A Nier-type mass spectrometer and its associated electronic units have been constructed for the purpose of measuring small variations in the abundances of oxygen of mass 18 and of carbon of mass 13 in carbon dioxide, and of oxygen of mass 18 in oxygen gas, to an accuracy of ±0.01 percent of the abundance of these isotopes. The electronic units of the necessary stability for this degree of accuracy are described. A gas feed system is described which permits fast alternate introduction of the sample of gas to be analyzed and a standard gas into the mass spectrometer. All measurements of the variation in the abundance of the oxygen and carbon isotopes are made with reference to a standard.
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Citations
Cited by
Craig, H. (1957) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(57)90024-8 · Cited by 4,170
Clayton, R. N., & Mayeda, T. K. (1963) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(63)90071-1 · Cited by 2,758
The geochemistry of the stable carbon isotopes
Craig, H. (1953) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(53)90001-5 · Cited by 1,965
Oxygen isotope exchange between quartz and water
Clayton, R. N., O'Neil, J. R., & Mayeda, T. K. (1972) · Journal of Geophysical Research · doi:10.1029/jb077i017p03057 · Cited by 1,513
Referencing strategies and techniques in stable isotope ratio analysis
Werner, R. A., & Brand, W. A. (2001) · Rapid Communications in Mass Spectrometry · doi:10.1002/rcm.258 · Cited by 1,033
Metadata
- Authors
- McKinney, C. R., McCrea, J. M., Epstein, S., Allen, H. A., & Urey, H. C.
- Venue
- Review of Scientific Instruments
- Publisher
- AIP Publishing
- Published
- 1950-08-01
- Volume
- 21
- Issue
- 8
- Pages
- 724-730
- ISSN
- 0034-6748 (ISSN-L)
- 1089-7623
- OpenAlex
- W2019465206
- Cited by
- 745
- References
- 0
- FWCI
- 5.53
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Improvements in Mass Spectrometers for the Measurement of Small Differences in Isotope Abundance Ratios. https://app.cochat.ai/papers/10.1063/1.1745698
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- McKinney, C. R., McCrea, J. M., Epstein, S., Allen, H. A., & Urey, H. C. (1950). Improvements in Mass Spectrometers for the Measurement of Small Differences in Isotope Abundance Ratios. Review of Scientific Instruments. https://doi.org/10.1063/1.1745698
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
