Mass spectrometer using plasma ion source

摘要: A mass spectrometer using a plasma ion source for analyzing an ultra-trace element includes generation system generating including the composition of sample, beam formation extracting ions in form from ions, spectrometry performing beamn, and detection detecting subjected to spectrometry, which lens made up cylindrical first electrode, second electrode with photon stopper disposed on central axis thereof, third is further provided between system. By provision system, generated are transported more efficiently side by above described position, it achieved, simpler structure, prevent photons entering