SRI - Model 8690-0080 - Flame Ionization Detector (FPD) - Brochure

The Flame Ionization Detector is the most commonly used GC detector, responding linearly from its minimum detectable quantity of about 100 picograms to almost 100%.The FID responds to any molecule with a carbonhydrogen bond, but not at all, or poorly, to compounds such as H2S, CCl4, or NH3. The FID response is very stable from day to day, and is not susceptible to contamination from dirty samples or column bleed.