Coupling Intermediate Pressure Regions

摘要

A method is disclosed for coupling a first chamber of a mass spectrometer or ion mobility spectrometer containing a first gas and a second chamber containing a second gas. The method comprises providing an intermediate region between the first and second chambers that is operated at a lower pressure to substantially prevent or reduce ingress of the first gas into the second chamber and/or of the second gas into the first chamber.

主权项

1. A method for coupling gas-filled regions within a mass spectrometer or an ion mobility spectrometer comprising:
providing an intermediate region disposed between a first chamber containing a first gas and a second chamber containing a second gas; and operating said intermediate region at a pressure below that of said first and second chambers so as to substantially prevent or reduce ingress of said first gas into said second chamber or of said second gas into said first chamber.