Ionization Modes: EI

Gas Chromatograph-Mass Spectrometry

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EI, one of the important ionization methods for GC/MS, will be explained. Additionally, you can experience the statistical aspect of mass analysis; the more ions you measure, the more improved data you obtain.

Three Ionization Modes

Features of EI

Molecular Ion Produced by EI

Fragment Ion Produced by EI

Full View of EI Process

Producing EI Mass Spectrum

Electron Energy and Mass Spectrum