... FID detectors 3.With completed capillary analysis system Model GC122 Gas Chromatograph CharacteristicsNewly designed, high performance HRGCDouble FID ... andphosphorous detector, GCl22-FPD flame photometric detector, converter, gas sample inlet valve,etc. In the basic type, ... has dual packed columns, double samplers and dual gas pathsystem structure, which can effectively restrain baseline fluctuation ...