Bernasconi, Stefano M. and Hu, Bin and Wacker, Ulrike and Fiebig, Jens and Breitenbach, Sebastian F. M. and Rutz, Tanja (2013) Background effects on Faraday collectors in gas-source mass spectrometry and implications for clumped isotope measurements: Background effects on Faraday collectors in mass spectrometry. Rapid Communications in Mass Spectrometry, 27 (5). pp. 603-612. ISSN 1097-0231 DOI https://doi.org/10.1002/rcm.6490
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Bernasconi_et_al-2013-Rapid_Communications_in_Mass_Spectrometry.pdf - Published Version Restricted to Registered users only Download (1MB) |
Abstract
The measurement of the abundances of minor isotopologues by mass spectrometry requires correction of subtle non-linearities in the mass spectrometer that cause deviations in the relationship between actual and measured isotope ratios. Here we show that negative backgrounds on the Faraday cups recording the minor ion beams are the cause of the observed non-linearities in the measurement of CO2 isotopologues, and propose a new correction procedure for clumped isotope measurements.
Item Type: | Article |
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Uncontrolled Keywords: | NILAREP |
Subjects: | 01 - Climate Change and Earth-Ocean Atmosphere Systems |
Divisions: | 01 - Climate Change and Earth-Ocean Atmosphere Systems |
Journal or Publication Title: | Rapid Communications in Mass Spectrometry |
Volume: | 27 |
Page Range: | pp. 603-612 |
Identification Number: | https://doi.org/10.1002/rcm.6490 |
Depositing User: | Sarah Humbert |
Date Deposited: | 20 Aug 2015 14:39 |
Last Modified: | 20 Aug 2015 14:39 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/3469 |
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