Contents

1. Introduction 2. Gas phase ion chemistry 3. Isotopes 4. Instrumentation 5. Electron Ionization 6. Fragmentation of organic lons and Interpretation of EI mass spectra 7. Chemical ionization 8. Field ionization and Field Desorption 9. Fast atom bombardment 10. Matrix assisted laser desorption / ionization 11. Electrospray ionization 12. Hyphenated methods