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MS: Fachverband Massenspektrometrie
MS 1: New Mass Spectrometric Methods and Technical Developments
MS 1.3: Vortrag
Montag, 17. März 2014, 11:15–11:30, DO24 1.205
Performance Results of a Mobile High-Resolution MR-TOF Mass Spectrometer for in-situ Analytical Mass Spectrometry — •Wayne Lippert1, Johannes Lang1, Samuel Ayet San Andrés2, Timo Dickel1,2, Hans Geissel1,2, Wolfgang Plaß1,2, Christoph Scheidenberger1,2, and Mikhail Yavor3 — 1Justus-Liebig-Universität Gießen — 2GSI, Darmstadt — 3RAS St. Petersburg
A mobile multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) has been developed which provides a mass resolving power exceeding 250,000 and sub-ppm mass accuracy in a transportable format. Thus it allows resolving isobars and enables accurate determination of the composition and structure of biomolecules. Furthermore the device offers high mass resolving MS/MS capability via selective ion re-trapping and collisional-induced dissociation (CID). An atmospheric pressure interface (API) provides for routine measurements with various atmospheric ion sources. All supply electronics, DAQ and control system are mounted with the spectrometer into a single frame with a total volume of only 0.8m3. With the current system many applications like waste water monitoring at hot spots, mass-based classification of biomolecules and breath analysis are possible. In addition the mass spectrometer is readily scalable and can be adopted and simplified for even more specific use like in space science for instance. A characterization and first performance results will be shown and the implementation of MS/MS in combination with CID will be discussed.