Understanding Electron Ionization for GC-MS

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Understanding Electron Ionization for GC-MS

In this session, the fundamentals of electron ionization (EI) for GC-MS is presented. The session will consider topics such as the anatomy of a typical EI source, the mechanisms of ionization, fragmentation and rearrangement reactions, and an introduction to EI mass spectral interpretation. A must see for everyone using or developing methods for GC-MS.

Topics include:

Why use electron ionization (EI)
Anatomy of a typical EI source
Vacuum and analyte introduction
Creation of radical cations
Energy of ionizing electrons
Transporting ions to the mass analyzer
Analyte fragmentation and rearrangement reactions
Tuning, troubleshooting & maintenance
Simple tools for EI interpretation

Understanding Electron Ionization for GC-MS

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