Understanding Electron Ionization for GC-MS

In this webcast, the fundamentals of electron ionization (EI) for GC-MS is presented. We 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