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Absorption-mode : the next generation of Fourier transform mass spectra
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Qi, Yulin, Barrow, Mark P., Li, Huilin, Meier, Joseph E., Van Orden, Steve L., Thompson, Christopher J. and O’Connor, Peter B. (2012) Absorption-mode : the next generation of Fourier transform mass spectra. Analytical Chemistry, Volume 84 (Number 6). pp. 2923-2929. doi:10.1021/ac3000122 ISSN 0003-2700.
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Official URL: http://dx.doi.org/10.1021/ac3000122
Abstract
The Fourier transform spectrum can be presented in the absorption-mode (commonly used in FT-NMR), magnitude-mode (FT-ICR), and power-mode (engineering applications). As is routinely used in FT-NMR, it is well-known that the absorption-mode display gives a much narrower peak shape which greatly improves the spectrum; recently, the successful solution of the phase equation allowed broadband phase correction which makes it possible to apply the absorption-mode routinely in FT-ICR. With the empirical evidence provided herein, it has been confirmed that in addition to the improvement on resolving power, compared to the conventional magnitude-mode, the new absorption-mode improves the signal-to-noise ratio (S/N) of a spectrum by 1.4-fold and can improve the mass accuracy up to 2-fold with no extra cost in instrumentation. Therefore, it is worthwhile to apply and promote absorption-mode in routine FT-ICR experiments. © 2012 American Chemical Society.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Analytical Chemistry | ||||
Publisher: | American Chemical Society | ||||
ISSN: | 0003-2700 | ||||
Official Date: | 20 March 2012 | ||||
Dates: |
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Volume: | Volume 84 | ||||
Number: | Number 6 | ||||
Page Range: | pp. 2923-2929 | ||||
DOI: | 10.1021/ac3000122 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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