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Updated: May 20, 2026
08:40
Using a Cyclic Ion Mobility Spectrometer for Tandem Ion Mobility Experiments
Published on: January 20, 2022
Absorption-mode spectra on the dynamically harmonized Fourier transform ion cyclotron resonance cell
Yulin Qi1, Matthias Witt, Roland Jertz
1Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
Rapid Communications in Mass Spectrometry : RCM
|August 1, 2012
Summary
Phase correction applied to data from a new dynamically harmonized Fourier transform ion cyclotron resonance (FT-ICR) cell significantly improves spectral resolution and peak intensity matching. This advancement facilitates easier interpretation of absorption-mode spectra and harmonic peak identification.
Area of Science:
- Analytical Chemistry
- Spectroscopy
Background:
- A novel dynamically harmonized Fourier transform ion cyclotron resonance (FT-ICR) cell enhances electric field harmonization for ion detection.
- This new cell extends ion transient times from seconds to minutes, enabling more detailed analysis.
Purpose of the Study:
- To evaluate the performance of phase correction on spectra obtained from the new FT-ICR cell.
- To explore the advantages of absorption-mode spectra in FT-ICR analysis.
Main Methods:
- Acquisition of spectra from standard and complex mixtures using narrowband and broadband modes.
- Processing of spectral data to compare magnitude and absorption-mode performance.
Main Results:
- Phase correction demonstrated significant improvements, doubling resolving power (2×) with the new cell.
- Improved agreement between theoretical and observed isotopic peak intensities was achieved.
- Absorption-mode spectra allowed for immediate diagnosis of harmonic peaks.
Conclusions:
- The study successfully demonstrates the utility of absorption-mode spectra from Nikolaev's ICR cell.
- Enhanced relative peak intensities and straightforward harmonic peak identification simplify spectral data interpretation for the scientific community.
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