Browsing by Subject "ion mobility spectrometry"

Browsing by Subject "ion mobility spectrometry"

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  • Schaefer, Christoph; Kirk, Ansgar T.; Allers, Maria; Zimmermann, Stefan (Washington, DC : ACS Publications, 2020-09-02)
    Ion mobility spectrometers (IMS) separate ions mainly by ion–neutral collision cross section and to a lesser extent by ion mass and effective temperature. When investigating isotopologues, the difference in collision cross ...
  • Allers, Maria; Kirk, Ansgar T.; Timke, Bennet; Erdogdu, Duygu; Wissorf, Walter; Benter, Thorsten; Zimmermann, Stefan (Washington, DC : ACS Publications, 2020-07-16)
    Due to the operation at background pressures between 10-40 mbar and high reduced electric field strengths of up to 120 Td, the ion–molecule reactions in High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) differ from ...
  • Allers, Maria; Kirk, Ansgar T.; Eckermann, Manuel; Schaefer, Christoph; Erdogdu, Duygu; Wissorf, Walter; Benter, Thorsten; Zimmermann, Stefan (Washington, DC : ACS Publications, 2020)
    In contrast to classical Ion Mobility Spectrometers (IMS) operating at ambient pressure, the High Kinetic Energy Ion Mobility Spectrometer (HiKE-IMS) is operated at reduced pressures of between 10 and 40 mbar and higher ...
  • Baether, Wolfgang; Zimmermann, Stefan; Gunzer, Frank (Berlin: Walter de Gruyter, 2012-07-26)
    Ion mobility spectrometry is a well-known technique used to analyze trace gases in ambient air. Typically, it works by employing a radioactive source to provide electrons with high energy to ionize the analytes in a series ...
  • Bunert, Erik; Heptner, Andre; Kirk, Ansgar T.; Käbein, Oliver; Zimmermann, Stefan; Kusch, Alexander; Wurz, Marc Christopher (Piscataway, NJ : IEEE, 2017)
    Ion mobility spectrometers (IMS) are measurement devices for fast and ultra-sensitive trace gas analysis. Most IMS employ radioactive electron sources, such as 3 H or 63 Ni, to provide free electrons with high kinetic ...