High temperature injection and vaporization system for gas chrom

Details High temperature injection and vaporization system for gas chrom High temperature injection and vaporization system for gas chrom

1979-11-02

1981-09-15

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

With heating or cooling

7386384, 7386481, G01N 114

Patent

active

042890292

ABSTRACT:
Sample injection and vaporization system for gas chromatography is capable of continuous injection of a liquid hydrocarbon sample in the -44.degree. F. to 1074.degree. F. boiling range from a closed system such as a flowing liquid stream or high pressure sample bomb. The system overcomes the temperature limitations inherent in the seals of existing sample valves and utilizes a syringe to transport a liquid sample from the sample stream to a hot vaporization zone through which a carrier gas is flowing. Insulating means keep the sample block containing the seals, including one which is contacted by both the carrier gas and sample stream, at a sufficiently low temperature to protect the seals.

REFERENCES:
patent: 3137174 (1964-06-01), Hawk et al.
patent: 3306502 (1967-02-01), Harris, Jr.
patent: 3482450 (1969-12-01), Harris, Sr. et al.
patent: 3508442 (1970-04-01), Lightner et al.
patent: 3631724 (1972-01-01), Oster et al.
patent: 4124358 (1978-11-01), Muller

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