Gas chromatograph apparatus

Details Gas chromatograph apparatus Gas chromatograph apparatus

1998-11-25

2000-03-14

Politzer, Jay L.

Measuring and testing

Gas analysis

Gas chromatography

73 6152, 422101, 2101982, 96105, G01N 3018, G01N 3060

Patent

active

060356979

ABSTRACT:
Device for connecting a first duct of a very small diameter, such as for instance a needle or a capillary column, to a second duct, wherein the device comprises a receiving part and a sealing element, wherein the receiving part is provided with a duct bore in which the first duct is slidably receivable, wherein the receiving part is also provided with a sealing-element bore which intersects the duct bore and in which the sealing element is slidably received, wherein the sealing element is provided with a recess, wherein the sealing element is adapted to assume a sealing position in which the duct bore is sealed, and is adapted to assume a connecting position in which the two duct bore parts on either side of the sealing-element bore are in fluid connection with each other via the recess, wherein the sealing element is biased in the sealing position by a spring under spring action.

REFERENCES:
patent: 4890502 (1990-01-01), Elias et al.
patent: 4991883 (1991-02-01), Worden
patent: 5105652 (1992-04-01), Manfredi et al.
patent: 5234235 (1993-08-01), Worden
C.N. Kenyon, R. Ellis, D. Dixon, "Novel Techniques For The Analysis Of Priority Pollutants By GC/MS", Technical Paper MS-13, Hewlett-Packard Co.
D. Henneberg, et al., High Performance GC/MS Interfacing, Investigation and Optimization of Flows and Temperatures, 12th International Symposium on Chromatography in Baden-Baden, Sep. 1978.
Drawing entitled "Restrictor Mid Point Capillary to Capillary MDS 2000", SGE International Pty. Ltd, Victoria, Australia, Aug. 8, 1990.

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