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.
WatsonJ. T. and BiemannK., Anal. Chem.37, 844 (1965).
2.
Detailed engineering drawings of the valve may be obtained from the Biomedical Engineering and Instrumentation Branch, Division of Research Services, National Institutes of Health, Bethesda, Md. 20014. Ask for drawing set No. 718156.
3.
LevyR. L.GesserH. D., and WestmoreJ. B., J. Chromatogr.32, 740 (1968).
4.
SpalvinsT.PrzybyszewskiJ. S., and BuckleyD. H., NASA Technical Note D-3703 Nov. 1966 (see Ref. 6 for availability).
5.
SpalvinsT. and BuckleyD. H., J. Vac. Sci. Technol.3, 107 (1966).
6.
SpalvinsT., NASA, TM X52549; available from Clearing-house for Federal Scientific and Technical Information, Springfield, Va. 22151.
7.
ArnoldJ. E. and FalesH. M., J. Gas Chromatogr. 3, 31 (1965).
