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Academic
Premier

An introduction to the ionization processes which occur in GC-MS. Ionization is the process whereby electrons are either removed or added to atoms or molecules to produce ions. In GC-MS, charge may also be applied to the molecule via association with other charged molecules. Such ions are produced in the GC-MS systems by the use of strong electric fields in the vapor phase.  

 

Topics include:

  • Electron ionization (EI)
  • Chemical ionization (CI)
  • Suitable samples for GC-MS