Guide to Continuous Instrument Selection (VOC's, Inorganic & Fixed Gases)
- Photoionization Detector (PID)
- Flame ionization Detector (FID)
- Thermal Conductivity Detector (TCD)
- Electrochemical (EC)
- Infrared (IR)
- Near infrared (NIR)
- Ultraviolet (UV)
- Gold Pre Concentrator (GPC)
Species to be Measured |
Concentration Range |
Model # & Technology |
|---|---|---|
| VOC's total | ppm | 112 PID, FID |
| VOC's total- (no CH4 response) | PID-ppm | PID 201C |
| PID-sub ppb | PID- 201-PPB w concentrator | |
| FID- ppm to % | 201-FID-ppm (incl. CH4) | |
| Multipoint | ppm | 201-MultiPoint PID or FID |
| Non Methane HC (catalyst) FID | ppm | 210-FID (CH4 NMHC, and Total HC) |
| Non Methane HC (GC) FID | ppm | 230 GC with FID (CH4 NMHC, and Total HC) |
| CO2 | ppm to 100% | 202-IR |
| CH4 | ppm to 100% | 202-IR |
| CO | 0-1000 ppm to 100% | 202-IR |
| N2O | 0-1,000 ppm | 202-IR |
| CI2,H2S, benzene | ppm to % | 203 UV to Near IR |
| Mercury (Hg) | Low ppb to ppm | 280-UV |
| H2, He, Ar in air or N2 | ppm to % | 204- TCD binary systems |
| Exogas (H2, CO2,CH4) | % | 205-(TCD, 2 x IR) |
| Electrochemical | ppm to % | 1000-EC (H2S, O2, HCN, Cl2, HCl, NO, NO2, SO2 ...) |
| Specific VOC's, Inorganics, Fixed Gases | ppb to % | 301-C-PID, FID, TCD ,FPD, FUV 301C- Multipoint |
| VOC's/CH4 | ppm/LEL | 1000 CG-202 IR |