Antonelli, Terry, Stout & Kraus
Plasma mass spectrometer
 A plasma mass spectrometer generates an aerosol of a sample, by dissolving the sample in a liquid solvent, and spraying the liquid into a spray chamber via a nebulizer. The solvent condenses in the spray chamber and an aerosol of the sample then passes through a supply tube to a plasma torch. Microwave power from an output on the plasma torch converts the aerosol to a plasma, and the plasma passes to an analyzer. If microwave radiation reached the spray chamber, it would cause heating of the solvent which may evaporate it so that the solvent would be present in the plasma. Therefore, there is a wall between the spray chamber and the plasma torch and microwave output which blocks such microwave radiation. 
Hitachi, Ltd
H
H01J
inventional
Masataka Takashi Tsuyoshi Toyoharu Konosuke Hiromi
Koga Iino Nishitarumizu Okumoto Oishi Yamashita