Development and characterization of the airborne chemical ionization mass spectrometer FunMass-C for atmospheric trace gas measurements / Alber, Sascha. Wuppertal, 2025
Inhalt
- Introduction
- Atmospheric Trace Gases
- Development of FunMass-C
- Aspects of Key Components
- Inlet
- Scrubber
- Vacuum Ultraviolet Lamp as Ion Source
- Ion Molecule Reaction Zone
- Time-of-Flight Mass Spectrometer
- Chemical ionization within FunMass
- Characterization and Calibration of FunMass-C
- Calibration Rack
- Insides of Detectable Species using CF3O-
- Sensitivity
- CF3OOCF3 Dependence
- Benzene Dependence
- IS Flow Dependence
- IMR Pressure Dependence
- Total IMR Flow Dependence
- IMR Temperature Dependence
- Sensitivity Dependence on other Trace Gases
- Sensitivity Dependence on MCP Voltage
- Computational Investigation of the CF3O- Ion Chemistry
- Positive Mode
- DMS oxidation at SAPHIR-STAR
- Conclusions and Outlook
- Appendix
- Further Details of the IMR
- Further Details of Characterization and Calibration of FunMass-C
- Further Details of IMR Ion Chemistry
- Further Details on DMS oxidation
- Bibliography