Electron ionisation (EI)
The standard ionisation mode in GC-MS, using a 70 eV electron beam in high vacuum to ionise and fragment vapour-phase analytes. Produces reproducible fragmentation patterns searchable against the NIST mass spectral library.
The standard ionisation mode in GC-MS, using a 70 eV electron beam in high vacuum to ionise and fragment vapour-phase analytes. Produces reproducible fragmentation patterns searchable against the NIST mass spectral library.
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