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Fundamentals of GC/MS
Ionization Modes: EI
EI
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
- Producing EI Mass Spectrum
- Electron Energy and Mass Spectrum
- Introduction: What is Mass ?
- Introduction: Types of Ions
- Ionization Modes: EI
- Ionization Modes: PCI
- Ionization Modes:NCI
- Hardware: Ion Source
- Hardware: Mass Analyzer
- Hardware: Scan Mode and SIM Mode
- Hardware: Detector
- Hardware: Vacuum System
- Parameters Expressing Performance of Mass Analyzer :Mass Resolution and Peak Width
- Parameters Expressing Performance of Mass Analyzer :Signal-to-Noise Ratio
- Qualitative Methods of GC/MS Analysis: Retention Time and Retention Index
- Qualitative Methods of GC/MS Analysis: Library Search