High temperature flame jet for gas chromatography

Details High temperature flame jet for gas chromatography High temperature flame jet for gas chromatography

1988-08-26

1991-03-12

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Flame ionization detector

422 89, 436155, 73 234, 55386, 55 67, G01N 3068

Patent

active

049991620

ABSTRACT:
A flame detector comprising a ceramic flame jet for use in a high temperature gas chromatography system is disclosed. The interior volume of the flame jet is fabricated of a highly inert ceramic material so that sample eluting from the end of a gas chromatography column located within the interior volume of the flame jet does not contact any metallic surface en route to the flame. By avoiding sample contact with metallic surfaces, interferences which are prone to occur at high temperature, such as peak tailing, are avoided. In a further aspect the flame detector is treated with a silylating reagent to further passivate the surfaces which may affect the sample.

REFERENCES:
patent: 3372000 (1968-03-01), Gallaway et al.
patent: 3585003 (1971-06-01), Scolnick
patent: 3954651 (1976-05-01), Donike
patent: 4182740 (1980-01-01), Hartman et al.
patent: 4798805 (1989-01-01), Issenmann
Stephen D. Nogare, Richard S. Juvet, Gas-Liquid Chromatography Theory & Practice, pp. 144-146, 1962, Interscience Publishers, New York-London.

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