Adjustable open-split interface for a gas chromatograph and a ma

Details Adjustable open-split interface for a gas chromatograph and a ma Adjustable open-split interface for a gas chromatograph and a ma

1993-06-11

1994-01-25

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 83, 422103, 73 2337, 73 2342, 7386481, 250288, 436161, 96106, G01N 3002

Patent

active

052813975

ABSTRACT:
An apparatus and a method providing an open-split interface between a gas chromatograph and a mass spectrometer for delivering a substantially solvent free sample material from the gas chromatograph to the mass spectrometer. The apparatus has a junction having an inlet to receive a gas chromatograph effluent. An inert auxiliary fluid such as helium supplied through a port is used to scavenge the solvent rich effluent to atmosphere. A transfer member disposed partially within the junction is initially positioned at a first position to accomplish the aforementioned scavenging action. The transfer member is then repositioned to a second position to direct the substantially solvent free sample to the mass spectrometer for a qualitative and a quantitative analysis.

REFERENCES:
patent: 3860393 (1975-01-01), Campen, Jr.
patent: 3936374 (1976-02-01), Bradley et al.
patent: 4654052 (1987-03-01), Sharp
patent: 4662914 (1987-05-01), Hansen et al.
patent: 4713963 (1987-12-01), Sharp
patent: 4842701 (1989-06-01), Smith et al.
patent: 5108468 (1992-04-01), Ligon, Jr.
Multidimensional Gas Chromatography: Techniques and Applications, Woodfin V. Ligon, Jr. --GE Corp. Reseaarch & Development pp. 55-85 in Gas Chromatography: Biochemical, Biomedical and Clinical Applications Ray E. Clement, ed. John Wiley & Sons Inc. 1990.
Journal of High Resolution Chromatography-"A Versatile Interface Modification for GC/MS on Benchtop Instruments"--L. Hathcock et al. (1990) pp. 656.gtoreq.658.
"Open Split Interface for Capillary Gas Chromatography/Mass Spectrometry, " R. F. Arrendale et al. (1984) pp. 1533-1537 Anal. Chem. vol. 56 No. 8.
Journal of Chromatography, 112 (1975)--"Special Techniques in the Combination of Gas Chromatography and Mass Spectrometry, " D. Henneberg et al. pp. 343-351.
Anal. Chem. (1988) --vol. 60, No. 19 pp. 2172-2174--"Cross-Bore Open-Split Interface for Gas Chromatography Coupled with Mass Spectrometry and Infrared Spectrometry, " S. Bourne and William R. Croasmun.
Anal. Chem. vol. 50, No. 14, Dec. 1978--"All-Glass Open-Split Interface for Gas Chromatography-Mass Spectrometry," Hans-Jurgen Stan and Bernd Abraham--pp. 2161-2164.
Journal of High Resolution Chromatography & Chromatography Communications--"Fused Silica Open-Split GC/MS Interface," J. F. Pankow and L. M. Isabelle (1987) pp. 617-619.
Journal of Chromatography, 450(1988)--Open Split Interfaces in Capillary Gas Chromatography-Mass Spectrometry-Yield and Quantitative Aspects, N. W. Davies pp. 388-393.
A Universal, Inexpensive Fused-Silica Interface for Gas Chromatography-Mass Spectrometry, Robert T. Rosen and Thomas G. Hartman.

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