Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Christoph Schaefer"'
Publikováno v:
Analytica, Vol 4, Iss 2, Pp 113-125 (2023)
Here, we present proof of principle studies to demonstrate how the product ions associated with the ion mobility peaks obtained from a High Kinetic Energy-Ion Mobility Spectrometer (HiKE-IMS) measurement of a volatile can be identified using a Proton
Externí odkaz:
https://doaj.org/article/7275087aa80e43c68975ca601ccd93ce
Autor:
Christoph Schaefer
Die Frage nach der Heilshoffnung der nicht an den Messias Jesus glaubenden Juden wird im zeitgenössischen theologischen Diskurs primär mit Verweis auf die paulinischen Aussagen in Röm 9–11 beantwortet, die sich für den jüdisch-christlichen Dia
Autor:
Florian Schlottmann, Christoph Schaefer, Ansgar T. Kirk, Alexander Bohnhorst, Stefan Zimmermann
Publikováno v:
Journal of the American Society for Mass Spectrometry. 34:893-904
Publikováno v:
Journal of the American Society for Mass Spectrometry.
Publikováno v:
Journal of the American Society for Mass Spectrometry. 33(6)
High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) chemically ionize gaseous samples via reactant ions and separate the generated ions by their motion in a neutral gas under the influence of an electric field. Operation at reduced pressures of
Autor:
Moritz Hitzemann, Christoph Schaefer, Ansgar T. Kirk, Alexander Nitschke, Martin Lippmann, Stefan Zimmermann
Publikováno v:
Analytica Chimica Acta. 1239:340649
Publikováno v:
Physical chemistry, chemical physics : PCCP 25 (2023), Nr. 2
Physical chemistry, chemical physics : PCCP
Physical chemistry, chemical physics : PCCP
Although aniline is a relatively simple small molecule, the origin of its two peaks observed in ion mobility spectrometry (IMS) has remained under debate for at least 30 years. First hypothesized as a difference in protonation site (amine vs. benzene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::371a4ba0e2b43a749758a2cc2d97589d
https://www.repo.uni-hannover.de/handle/123456789/13813
https://www.repo.uni-hannover.de/handle/123456789/13813
Autor:
Florentin Weiss, Gary Eiceman, Tilmann D. Märk, Chris A. Mayhew, Veronika Ruzsanyi, Christoph Schaefer, Stefan Zimmermann
Publikováno v:
The European Physical Journal D : Atomic, Molecular, Optical and Plasma Physics 76 (2022), Nr. 10
The European Physical Journal D : Atomic, Molecular, Optical and Plasma Physics
The European Physical Journal D : Atomic, Molecular, Optical and Plasma Physics
The first High Kinetic Energy-Ion Mobility Spectrometry-Mass Spectrometry (HiKE-IMS-MS) studies involving six volatiles (acetone, acetonitrile, methanol, ethanol, 2-propanol, and 1-butanol) and their fully deuterated analogues are reported. The goal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6840e6d525af9b05c582689e5a9238a
Autor:
Maria Allers, Christoph Schaefer, André Ahrens, Florian Schlottmann, Moritz Hitzemann, Tim Kobelt, Stefan Zimmermann, Ralf Hetzer
Publikováno v:
Analytical chemistry. 94(2)
Due to their high sensitivity and compact design, ion mobility spectrometers are widely used to detect toxic industrial chemicals (TICs) in air. However, when analyzing complex gas mixtures, classical ion mobility spectrometry (IMS) suffers from fals
Publikováno v:
Journal of the American Society for Mass Spectrometry. 32(7)
Classical ion mobility spectrometers (IMS) operated at ambient pressure, often use atmospheric pressure chemical ionization (APCI) sources to ionize organic compounds. In APCI, reactant ions ionize neutral analyte molecules via gas-phase ion-molecule