Mass Spectrometry sample preparation, introduction and measurement; Plasma Ionization, Inductively Coupled Plasma , Other Atmospheric Pressure Plasmas; Electrospray Ionization for Inorganic Analysis, Measurement of metal ions; Secondary Ion and Neutral Mass Spectrometry; Inorganic laser Desorption and Laser Ionization, Laser ionization cluster sources; Thermal ionization Mass Spectrometry; Accelerator mass spectometry and Instrumentation; Laboratory studies of atmospherically relevant species; Isotope ratio mass spectrometry (IRMS) and IRMS of light elements (C, H, O, N, S). Applications of techniques to measure the environment, geochemical, atmospheric, space, nuclear, medical and electronics.