1. CCD – Catalytic Combustion Detector
2. TCD – Thermal Conductivity Detector
3. FID – Flame Ionization Detector
4. DELCD – Dry Electrolytic Conductivity Detector
5. FID/DELCD – combination Flame Ionization Detector and Dry Electrolytic Conductivity Detector
6. HID – Helium Ionization Detector
7. PID – Photo Ionization Detector
8. NPD – Nitrogen-Phosphorus Detector
9. NPD/DELCD – combination Nitrogen-Phosphorus Detector and Dry Electrolytic Conductivity Detector (discontinued)
10. TID – Thermal Ionization Detector
11. FPD – Flame Photometric Detector
12. FPD/FID – combination Flame Photometric Detector and Flame Ionization Detector
13. Dual FPD – dual wavelength for simultaneous sulfur and phosphorus response
14. FID dual FPD – combination dual Flame Photometric Detector and Flame Ionization Detector
15. ECD – Electron Capture Detector
16. RGD – Reduction Gas Detector
17.MS Mass spectroscopy Detector
Pharmaceutical company mostly  use 4 detector Gas chromatography
  1. TCD (thermal Conductivity Detector)
  2. FID(Flame Ionization Detector)
  3. NPD(Nitrogen-Phosphorus Detector)
  4. MS
  5. PID – Photo Ionization Detector