Sample injection with automatic cleaning of sampling conduit

Details Sample injection with automatic cleaning of sampling conduit Sample injection with automatic cleaning of sampling conduit

G - Physics

01

N

73/97

G01N 1/14 (2006.01) G01N 1/00 (2006.01) G01N 30/24 (2006.01)

Patent

CA 1072773

ABSTRACT OF THE DISCLOSURE: An automatic liquid sample-injecting apparatus using a conduit such as a hypodermic needle or pipette to suck liquid from a sample source and transfer it to an injector valve apparatus. The apparatus utilizes the optimum embodiment of the apparatus being equipped with (1) novel seal means adapted to exert a radial thrust or wiping action on the conduit and (2) novel conduit working means featuring both a drip-proof means to supply a non-contaminating solvent for washing the exterior of the needle and means to remove such solvent, all without interfering with the use of the needle in a series of automatic injections.

297609

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