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Variation of the Fourier transform mass spectra phase function with experimental parameters
Yulin Qi1, Mark P Barrow, Steve L Van Orden
1Department of Chemistry, University of Warwick, Coventry, United Kingdom.
Analytical Chemistry
|October 7, 2011
Summary
Phase correction of Fourier transform ion cyclotron resonance (FTICR) data significantly improves peak shape. A newly solved phasing method for broadband FTICR spectra simplifies this complex process, making it broadly applicable.
Area of Science:
- Analytical Chemistry
- Spectroscopy
Background:
- Phase correction of Fourier transform ion cyclotron resonance (FTICR) data enhances spectral quality.
- The phase-wrapping problem has historically hindered research in FTICR data processing.
- Recent advancements have resolved the phasing of broadband FTICR spectra.
Purpose of the Study:
- To discuss the data processing procedure for phase correction in FTICR.
- To analyze the characteristics of the phase function using mathematical and experimental approaches.
- To demonstrate the broad applicability and reusability of optimized phase functions.
Main Methods:
- Mathematical treatment of phase correction algorithms.
- Experimental validation using FTICR data.
- Optimization of phase functions with correction factors.
Main Results:
- A robust method for phasing broadband FTICR spectra has been established.
- The phase function can be optimized and applied across different experiments and instrument parameters.
- A single phase function calculation is often sufficient after instrument calibration.
Conclusions:
- Phase correction is crucial for obtaining high-quality absorption-mode FTICR spectra.
- The developed phasing method overcomes previous complexities, enabling wider adoption.
- Optimized phase functions offer a universal solution for FTICR data processing, reducing the need for repeated calculations.
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