Flow modulation for facilitating detector ignition

Details Flow modulation for facilitating detector ignition Flow modulation for facilitating detector ignition

1997-10-10

1998-12-29

Pyon, Harold Y.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Flame ionization detector

422 89, 422105, 436154, 436161, 73 231, 55 18, 55 20, 55 21, 55 67, 55197, 55386, B01D 1508, G01N 2700

Patent

active

058536647

ABSTRACT:
Method for the analysis of one or more analytes present in a sample carried in a first fluid. The first fluid is combined with a first detector fluid and a second detector fluid to provide a fluid mixture which flows across the surface of an igniter. The analytes are ionized by means of an ionization process. The ion current is collected and measured at a collector electrode adjacent to the igniter. The flow of at least one of the first detector fluid and second detector fluid is modulated during an ignition sequence according to predetermined criteria so as to facilitate flame ignition.

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Gallagher, M. M., et al: "Selectivity Enhancement Of A Metal-Sensitive Flame Ionization Detector For Capillary Gas Chromatography," Journal Of High Resolution Chromatography, vol. 13, No. 10, 1 Oct. 1990.

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