ABSTRACT
The flame photometric detector (FPD) detects compounds in a flowing gas stream by burning those compounds in a flame and sensing the increase in light emission from the flame (flame chemiluminescence) during combustion (1,2). The FPD is a flame optical emission detector consisting of a hydrogen-air flame in an enclosed chamber, an optical window for observing flame emissions, an optical filter for spectroscopically selecting the wavelength range of emissions to be observed, a photomultiplier tube (PMT) for measuring the intensity of emitted light, and an electrometer for measuring the current output of the PMT.
