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CO2 Microprofiling in Semi-Solids
Profiling CO2 Microsensor PM-CDM1 (Prototype)
The CO2 Profiling Microsensor can be used for all profiling applications in semi-solid substrates, such as sediments, microbial mats or biofilms. The PM-CDM1 is the most robust version of PreSens CO2 Microsensors and has a close-fitting fiber guidance and mechanical interlock for precise vertical localization of the measurement tip. The sensor tip is extendable with a turning mechanism.
- CO2 measurements in liquids & semi-solid substrates (0.04 to 5 % CO2)
- High spatial resolution (250 µm)
- Ideal for physiological solutions
- Precise on-the-spot measurements
Technical
| Specifications*/** | |
|---|---|
| *preliminary data **provided the CO2 microsensors are used without further handling in physiological solution under physiological conditions ***temperature compensation not available yet. Please contact our experts regarding your measurement temperature. | |
| Measurement range | 0.04 - 5 % CO2 at atmospheric pressure |
| Response time (t90) for a CO2 change from 0.5 to 1 % | < 5 min (at 25 °C) < 3 min (at 37 °C) |
| Resolution at 25 °C | ± 0.01 % at 0.1 % CO2 ± 0.1 % at 1 % CO2 |
| Spatial resolution | 250 µm |
| Measurement temperature range*** | From + 12 °C to + 42 °C |
| Properties** | |
| Compatibility | Aqueous solutions, pH 4 to 9 |
| Cross-sensitivity | Organic solvents, volatile acids (e.g. HCl vapors, acetic acid) and sulfidic environments will damage the sensor irreversibly |
| Calibration | CO2 sensors are pre-calibrated at the required temperature***; re-calibration is possible and recommended |