Query: What detectors are utilized in a gas chromatograph?
Context: Flame Ionization Detectors (FID) are used for most hydrocarbons, Photoionization Detectors (PID) for volatile organics and Thermal Conductivity Detector (TCD) for general use and other specialty detectors are available. Process GC’s typically utilize FID, PID, or TCD, due to their simple reliable designs.