Table 3.
Examples for commercial ethylene measuring equipment. Calibration is possible for all devices.
| detection method | model | in situ measurement | carrier gas | net price in €000 | resolution in ppb (=10−9) |
|---|---|---|---|---|---|
| gas chromatograph (FID) | various stationary equipment | not available | required | 18–20 | 10–100 |
| Photovac Explorer [41] | not available | required | 19 | 100 | |
| catalytic sensor | ETH1010 [31] | available | not required | 7 | 10 |
| Absoger [33] | available | not required | ca 7 | 10 | |
| photoacoustic (PA) | Sensor Sense EDT-300 [24] | available | not required | 30 | 0.3 |
| Gasera F10 [25] | available | not required | ca 20 | 800 | |
| NDIR | SmartGas [50] | available | not required | more than 1.5 | 20 000 |