Abstract: A combustion cell for flame ionization detectors consists of a housing having an interior defining a combustion chamber that is in communication with a source of an oxygen containing gas. Two or more burner nozzles are located in the combustion chamber and each of the burner nozzles communicate with a common source of a sample gas. One or more collectors are disposed in the for the sensing of a electrical current created by the combustion and ionization of a sought for substance. In operation two or more burner nozzles are used for combustion of the sample/fuel mixture to enhance the sensitivity and linearity of the output signal.