Use of multiply charged atomic ions for isotope ratio mass spectrometry

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dc.contributor.authorHotchkis, MACen_AU
dc.contributor.authorButton, Den_AU
dc.contributor.authorWaring, CLen_AU
dc.date.accessioned2009-06-17T01:17:57Zen_AU
dc.date.accessioned2010-04-30T05:07:29Zen_AU
dc.date.available2009-06-17T01:17:57Zen_AU
dc.date.available2010-04-30T05:07:29Zen_AU
dc.date.issued2008-05en_AU
dc.date.statistics2008-05en_AU
dc.description.abstractWe have investigated the use of multiply charged atomic ions for the measurement of isotopic ratios of gaseous and vapour samples. We use a mass spectrometer system incorporating an electron cyclotron resonance (ECR) ion source for this purpose. In the cases of carbon, nitrogen and oxygen, the selection of the 2+ atomic species is found to be the most effective for obtaining reliable isotopic ratios. Using samples of carbon dioxide, nitrogen, air and water vapour, we have demonstrated the determination of the isotopic ratios C-13/C-12, N-15/N-14, O-17/O-16 and O-18/O-16. For oxygen, this technique offers an alternative to the equilibration or purification methods normally required to obtain isotopic ratios of water or other oxygen-containing samples. In particular, O-17/O-16 can be measured directly without isobaric interference from OH+. With typical ionization efficiencies of greater than 10%, ECR ion sources have the potential to enable measurements on very small samples. In addition to those evaluated in the present work, there is scope for application of this method to other sample types, to a variety of sampling methods, and to other elements. © 2008, Wiley-Blackwell.en_AU
dc.identifier.citationHotchkis, M. A. C., Button, D., & Waring, C. L. (2008). Use of multiply charged atomic ions for isotope ratio mass spectrometry. Rapid Communications in Mass Spectrometry, 22(9), 1408-1414. doi:10.1002/rcm.3513en_AU
dc.identifier.govdoc1479en_AU
dc.identifier.issn0951-4198en_AU
dc.identifier.issue9en_AU
dc.identifier.journaltitleRapid Communications in Mass Spectrometryen_AU
dc.identifier.pagination1408-1414en_AU
dc.identifier.urihttp://dx.doi.org/10.1002/rcm.3513en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1390en_AU
dc.identifier.volume22en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectAtomic ionsen_AU
dc.subjectIsotope ratioen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectMoleculesen_AU
dc.subjectElectron cyclotron-resonanceen_AU
dc.subjectIonizationen_AU
dc.titleUse of multiply charged atomic ions for isotope ratio mass spectrometryen_AU
dc.typeJournal Articleen_AU
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