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Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
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Novel tandem quadrupole-acceleration-deceleration mass spectrometer for neutralization-reionization studies
1Department of Chemistry, University of Washington, BG-10, 98195, Seattle, WA.
Journal of the American Society for Mass Spectrometry
|November 16, 2013
Summary
A novel quadrupole-acceleration lens-deceleration-lens-quadrupole mass spectrometer was developed for neutralization-reionization studies. This instrument achieves high ion transmission and unit mass resolution for aromatic compounds.
Area of Science:
- Analytical Chemistry
- Mass Spectrometry
- Physical Chemistry
Background:
- Neutralization-reionization mass spectrometry (NRMS) is a powerful technique for studying ion structures and reactions.
- Existing instruments may have limitations in ion transmission or resolution for specific applications.
Purpose of the Study:
- To describe a new tandem mass spectrometer with a quadrupole-acceleration lens-deceleration-lens-quadrupole (QADQ) configuration.
- To evaluate the performance of the QADQ instrument for neutralization-reionization studies.
Main Methods:
- The instrument comprises two 2000-u quadrupole mass analyzers (MS-I and MS-II) separated by an acceleration lens, three collision cells, and a deceleration lens/energy filter.
- High total ion transmission was achieved for 5-9-keV ions.
- The system demonstrated unit mass resolution in neutralization-reionization mass spectra.
Main Results:
- The QADQ mass spectrometer successfully performed neutralization-reionization studies.
- High ion transmission was observed across a range of ion energies.
- Unit mass resolution was achieved for the analysis of aromatic compounds.
Conclusions:
- The developed QADQ tandem mass spectrometer is suitable for neutralization-reionization studies.
- The instrument offers high performance in terms of ion transmission and mass resolution.
- Further studies can utilize this instrument for detailed structural analysis of ions.
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