Atmospheric pressure ionization coupled to an electron ionization mass spectrometer
AssigneeInficon GmbH
InventorNigel Sousou
Life of this patent
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Abstract
An atmospheric pressure electron impact ionization mass spectrometer system includes an atmospheric pressure ionization component operated at an atmospheric pressure. An electron impact ionization mass spectrometer includes an electron ionization source. An atmospheric pressure interface operates below about 10 Torr. The atmospheric pressure interface includes a source block to focus a plurality of molecules and ions from the atmospheric pressure ionization component at the atmospheric pressure into the electron ionization source which operates at a pressure below about 10−3 Torr.
Claims10
An atmospheric pressure electron impact ionization mass spectrometer system comprising:
- a. an atmospheric pressure ionization component operated at an atmospheric pressure;
- b. an electron impact ionization mass spectrometer component comprising an electron ionization source;
- and
- c. an atmospheric pressure interface component operated below about 10 Torr, the atmospheric pressure interface component including a source block to focus a plurality of molecules and ions from the atmospheric pressure ionization component at the atmospheric pressure into the electron ionization source, the electron ionization source operating at a pressure below about 10−3 Torr.
Dependencies are inferred from the claim text.