Gas detector FPD/FID

flame ionizationflame photometry

Both the single or dual FPD can be equipped with an FID collector electrode and electrometer, which will detect the hydrocarbon peaks at the same time the PMTs are responding to the sulfur and phosphorus compounds. The FID response is not as sensitive as a pure FID because the hydrogen-rich flame is optimized for sulfur and phosphorus detection, rather than hydrocarbon detection. Users can easily optimize the sulfur-phosphorus response versus hydrocarbons response simply by adjusting the hydrogen/air mixture with the included EPC gas controls.