Electron Impact (EI) Ionisation
Definition
A hard ionisation mode at 70 eV used in GC-MS that produces extensive, reproducible fragmentation. The fragmentation pattern is matched against libraries such as NIST and Wiley for compound identification.
Related terms
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- Internal Standard (IS)
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- MRM (Multiple Reaction Monitoring)
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Explained in
- Spectrometric Detection: UV-Vis, FTIR and Mass SpectrometryA hard ionisation mode at 70 eV used in GC-MS that produces extensive, reproducible fragmentation. The fragmentation pattern is matched against libraries such...