T
Tilmann D. Märk
Researcher at University of Innsbruck
Publications - 668
Citations - 19726
Tilmann D. Märk is an academic researcher from University of Innsbruck. The author has contributed to research in topics: Ion & Electron ionization. The author has an hindex of 64, co-authored 662 publications receiving 18712 citations. Previous affiliations of Tilmann D. Märk include University of New Hampshire & Claude Bernard University Lyon 1.
Papers
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Journal ArticleDOI
A high resolution and high sensitivity proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF-MS)
Alfons Jordan,S. Haidacher,G. Hanel,Eugen Hartungen,Lukas Märk,H. Seehauser,R. Schottkowsky,Philipp Sulzer,Tilmann D. Märk +8 more
TL;DR: In this article, the Tofwerk orthogonal acceleration reflectron time-of-flight (TOF-MS) was used to measure VOCs at ultra-low concentrations (as low as a few pptv) under high mass resolution (as high as 6000m/Δm in the V-mode) with a mass range of beyond 100,000 amu.
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Electron attachment to uracil: effective destruction at subexcitation energies.
G. Hanel,B. Gstir,Stephan Denifl,Paul Scheier,Michael Probst,Bernadette Farizon,Michel Farizon,Eugen Illenberger,Tilmann D. Märk +8 more
TL;DR: It is demonstrated that electrons at energies below the threshold for electronic excitation effectively decompose gas phase uracil generating a mobile hydrogen radical and the corresponding closed shell uracils fragment anion (U-H)(-).
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Theoretical determination of absolute electron-impact ionization cross sections of molecules
TL;DR: A recent review as discussed by the authors describes recent progress in the development of more rigorous approaches for the calculation of absolute electron-impact molecular ionization cross sections, particularly in applications where a larger number of cross section data were needed with reasonable precision.
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On Quantitative Determination of Volatile Organic Compound Concentrations Using Proton Transfer Reaction Time-of-Flight Mass Spectrometry
Luca Cappellin,Thomas Karl,Michael Probst,Oksana B. Ismailova,Paul M. Winkler,Christos Soukoulis,Eugenio Aprea,Tilmann D. Märk,Flavia Gasperi,Franco Biasioli +9 more
TL;DR: PTR-ToF-MS can successfully be used to estimate reaction rate coefficients between H(3)O(+) and VOC at PTR-MS working conditions and find good agreement with the corresponding nonthermal theoretical predictions.
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Mass spectrometric determination of partial electron impact ionization cross sections of He, Ne, Ar and Kr from threshold up to 180 eV
TL;DR: In this paper, a new approach to mass spectrometric measurement and analysis has been used to study the electron impact ionization of the rare gases in the low electron energy regime (<180 eV).