Method of injecting a sample into gas chromatograph

Details Method of injecting a sample into gas chromatograph Method of injecting a sample into gas chromatograph

1996-11-14

1998-07-21

Williams, Hezron E.

Measuring and testing

Gas analysis

Gas chromatography

7386486, 7386487, G01N 100

Patent

active

057837422

ABSTRACT:
A sample is injected into a gas chromatograph by first slowly causing a needle of a syringe containing the sample to penetrate a septum and be inserted into a sample vaporization chamber and then quickly pushing a plunger to inject the sample into the sample vaporization chamber and pulling out the needle out of the sample vaporization chamber such that effects of discrimination can be controlled and the stress on the needle can be reduced.

REFERENCES:
patent: 4289029 (1981-09-01), Sampson et al.
patent: 4615226 (1986-10-01), DiNuzzo et al.
patent: 5037611 (1991-08-01), Ledford, Jr.
patent: 5150601 (1992-09-01), Simeroth et al.
patent: 5472670 (1995-12-01), Harrington et al.

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