Source: produces
charged particles (ions)
• Electron Impact (EI)
- Hard
(fragments) / 1000 Da
• Chemical
Ionization (CI) – (methane / isobutane / ammonia)
• Fast Atom
Bombardment (FAB) – 6keV xenon atoms
• Electrospray
Ionization (ESI) - Soft / 200kDa
• Matrix-Assisted
Laser Desorption Ionization - Soft
/ 500kDa