Chemical ionization
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Chemical ionization is a soft ionization technique used in mass spectrometry. This was first introduced by Burnaby Munson and Frank H. Field in 1966. This technique is a branch of gaseous ion-molecule
Peroxynitrate chemical ionization mass spectrometer at the US National Oceanic and Atmospheric Administration
Ion source
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An ion source is a device that creates atomic and molecular ions. Ion sources are used to form ions for mass spectrometers, optical emission spectrometers, particle accelerators, ion implanters and io
Chemical ionization
…M + H ] + (protonation) AH + CH 3 + ⟶ CH 4 + A + ( H − abstraction) M + C 2 H 5 + ⟶ [ M + C 2 H 5 ] + (adduct formation) A + CH 4 + ⟶ CH 4 + A + (charge exchange) If ammonia is the reagent gas, NH 3 + e − ⟶ NH 3 + ∙ + 2 e − NH 3 + NH 3 + ∙ ⟶ NH 4 + + NH 2 M + NH 4 + ⟶ MH + + NH 3 For isobutane as the reagent…
Mass spectrometer EI/CI ion source
Electron ionization source schematic
NASA's NEXT space craft propulsion system
Capillaritron with quartz capillary in operation within a vacuum chamber: On the left the glowing capillary with the plasma up to the extraction cathode and on the right behind it the bluish glowing ion beam.