ABSTRACT
In view of the use of this detector in Methods 101, 108, and 130, this expanded discussion is provided here. A flame ionization detector (FID) is a device which incorporates regulated fuel, air and sample delivery systems, an internal burner, and associated electronics for measuring the ion current produced by species introduced into the flame. The FID is used to sense and measure small amounts of gaseous organic-type components present in the carrier gas stream leaving the column of a gas Chromatograph (G.C.) or to monitor methane and/or total hydrocarbon concentrations in ambient air samples.
