This chapter contains sections titled: Ionization of Inorganic Compounds Thermal Ionization Mass Spectrometry Spark-Source Mass Spectrometry Glow Discharge Ionization Mass Spectrometry Inductively Coupled Plasma Mass Spectrometry Resonance Ionization Mass Spectrometry Isotope Ratio Mass Spectrometry Accelerator Mass Spectrometry Isotope Dilution Mass Spectrometry Overview Exercises Additional Reading References