Erlangen 2018 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 10: Poster 2
MS 10.7: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Orangerie
Multi-reflection time-of-flight mass spectrometry with combined in-trap lift capture and mirror-switch ejection — •Paul Fischer1, Stefan Knauer1, Gerrit Marx1, Birgit Schabinger1, Lutz Schweikhard1, and Robert N. Wolf2 — 1Institut für Physik, Universität Greifswald, 17489 Greifswald, Germany — 2ARC Centre of Excellence for Engineered Quantum Systems, School ofPhysics, The University of Sydney, NSW 2006 Australia
Multi-reflection time-of-flight (MR-ToF) devices are mass separators and analyzers with high resolving powers and fast processing times. For ion injection and ejection, either the electrostatic ion-mirrors or an in-trap lift electrode [1] can be switched. Both methods result in advantages as well as drawbacks. We show the results of a combination of the two, i.e. in-trap lift switching is employed for ion capture with increased mirror-potential stability and exit-side mirror switching for increased ejection mass band width.
Measurements with small lead clusters illustrate the individual techniques as well as the gain from their combination [2].
[1] R. N. Wolf et al., Int. J. Mass Spectrom. 313:8-14(2012)
[2] S. Knauer et al., Int. J. Mass. Spectrom., online:
https://doi.org/10.1016/j.ijms.2017.10.007(2017).