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A Slide Valve Suitable for Coupling a Gas Chromatograph to a Mass Spectrometer

Volume 25, Number 1 (Feb. 1971) Page 44-46

Landis, William R.; Alford, William C.; Perrine, Theodore D.; Thomas, George M.; Anderson, Frank O.


A vacuum slide valve is presented in which inlet and outlet tubes are brought in and out of register. The sliding members are housed in a vacuum chamber to minimize leakage of air into the mass spectrometer. To provide suitable lubrication of the sliding members in the ambient hot vacuum, a gold film is employed.