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Variation of the Fourier transform mass spectra phase function with experimental parameters

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Qi, Yulin, Barrow, Mark P., Van Orden, Steve L., Thompson, Christopher J., Li, Huilin, Perez-Hurtado, Pilar and O’Connor, Peter B. (2011) Variation of the Fourier transform mass spectra phase function with experimental parameters. Analytical Chemistry, Vol.83 (No.22). pp. 8477-8483. doi:10.1021/ac2017585

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Official URL: http://dx.doi.org/10.1021/ac2017585

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Abstract

It has been known for almost 40 years that phase correction of Fourier transform ion cyclotron resonance (FTICR) data can generate an absorption-mode spectrum with much improved peak shape compared to the conventional magnitude-mode. However, research on phasing has been slow due to the complexity of the phase-wrapping problem. Recently, the method for phasing a broadband FTICR spectrum has been solved in the MS community which will surely resurrect this old topic. This paper provides a discussion on the data processing procedure of phase correction and features of the phase function based on both a mathematical treatment and experimental data. Finally, it is shown that the same phase function can be optimized by adding correction factors and can be applied from one experiment to another with different instrument parameters, regardless of the sample measured. Thus, in the vast majority of cases, the phase function needs to be calculated just once, whenever the instrument is calibrated.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH): Fourier transform spectroscopy, Adsorption, Space charge, Ion cyclotron resonance spectrometry, Apodization, Phase rule and equilibrium
Journal or Publication Title: Analytical Chemistry
Publisher: American Chemical Society
ISSN: 0003-2700
Official Date: 15 November 2011
Dates:
DateEvent
15 November 2011Published
Volume: Vol.83
Number: No.22
Number of Pages: 8
Page Range: pp. 8477-8483
DOI: 10.1021/ac2017585
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: University of Warwick, Engineering and Physical Sciences Research Council (EPSRC)
Grant number: EP/F034210/1 (EPSRC)

Data sourced from Thomson Reuters' Web of Knowledge

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