Table 1. Operating Parameters of the Miniaturized High-Performance Drift Tube IMS.
| temperature T | 32.0–33.5 °C |
| pressure p | 1005–1020 mbar |
| drift gas | synthetic air (< 2 ppmv H2O, < 1 ppmv CO2) |
| drift gas flow | 120 mLs/mina |
| sample gas | purified air (about 3% RH and 400 ppmv CO2) containing specified traces of CWA |
| sample gas flow | 10 mLs/mina |
| drift region length L | 40 mm |
| drift region voltage UD | 2.5 kV (pos.) |
| –2.5 kV (neg.) | |
| reaction region length | 2 mm |
| reaction region voltage | 550 V (pos.) |
| –550 V (neg.) | |
| ionization source | X-rays |
| filament current: 630 mA | |
| acceleration voltage: –3.4 kV | |
| injection time | 100 μs |
| repetition rate | 40 Hz |
a
mLs/min: standard milliliter per minute, mass flow at reference conditions 20 °C and 1013.25 mbar.