Direct filter injection system for gas chromatographs

Details Direct filter injection system for gas chromatographs Direct filter injection system for gas chromatographs

1990-06-21

1992-05-05

Williams, Hezron E.

Measuring and testing

Sampler, sample handling, etc.

With heating or cooling

73 2341, G01N 3020

Patent

active

051097109

ABSTRACT:
An injector port assembly for direct injection of a solid filter test sample for gas chromatography analysis comprising and elongated thermally conductive injector tube having a perforated sample holding portion, and an injection port having a sealable entry opening into which the elongated injector tube is moveably inserted, a hot zone, a cool zone thermally insulated from the hot zone, a purge valve and a conduit for connecting said injection port in fluid communication with a gas chromatography column.

REFERENCES:
patent: 3327520 (1967-06-01), Stapp, Jr.
patent: 3401552 (1968-09-01), Ruchelman
patent: 3463012 (1969-08-01), McKinney et al.
patent: 4293316 (1981-10-01), Block
patent: 4344917 (1982-08-01), Schorno
patent: 4357836 (1982-11-01), Kokesh
patent: 4710354 (1987-12-01), Behar et al.
patent: 4759210 (1988-07-01), Wohltjen
patent: 4919893 (1990-04-01), Bandurski et al.

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