Heidelberg 2015 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 3: New Mass Spectrometric Methods and Technical Developments
MS 3.7: Vortrag
Montag, 23. März 2015, 18:30–18:45, PH/HS2
Ultra-High Resolution Tandem Mass Spectrometry in a Mobile MR-TOF Mass Spectrometer — •Wayne Lippert1, Johannes Lang1, Samuel Ayet San Andrés2, Julian Bergmann1, Timo Dickel1,2, Hans Geissel1,2, Christian Jesch1, Alexander Pikhtelev3, Wolfgang Plaß1,2, Christoph Scheidenberger1,2, and Mikhail Yavor4 — 1Justus-Liebig-Universität Gießen — 2GSI Darmstadt — 3RAS Moscow — 4RAS St. Petersburg
The mobile multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) provides a mass resolving power exceeding 400,000 and sub-ppm mass accuracy in a transportable format. It comprises an atmospheric pressure interface (API) that enables coupling with various atmospheric ion sources, an RFQ beam preparation system and a high resolution time-of-flight mass analyzer with MCP detector.
In addition to highly resolved and accurate mass measurements, the device offers unique MS/MS capability via selective ion re-trapping with ultra-high mass separation power (R ≈ 50,000) and collisional-induced dissociation (CID) as intermediate fragmentation method. By analyzing the molecule fragments in the time-of-flight analyzer after ion re-trapping and CID, structural information and unambiguous identification are provided.
The instrument is ideally suited for the identification of species in biological or environmental samples and can be applied for in-situ operation at various measurement sites.