A new and innovative technology for measuring oxygen in gaseous and aqueous phase with important advantages over using common clark type electrodes.
- BioOxy does not consume oxygen during measurements
- Similar performance overall at a lower cost
- This helps lower research or operational expenses compared to competitive consumable sensors
- BioOxy can be gamma sterilised
- Oxygen detection using the phase shift between a reference signal and measured signal
- Common sterilisation procedure via gamma radiation, ethanol, paracetic acid, ethylene oxide
- Easy cleaning procedure with 3% H₂O₂, ethanol, or common soap solution
- Compatibility with ethanol, methanol, and isopropanol
- No cross-sensitivity for organic solvents such as acetone, toluene, chloroform or methylene chloride and any chlorine gas
- Available with SMA or ST connector
- Sensing tip diameter, ~50 μm
The BioOxy couples directly to either the fiber optic OXY-MICRO microsensor oxygen meter or the FLOX-oxygen monitoring system. Applications are oxygen measurement in small samples and bioprocess control.
Benefits:
- Designed for use in gaseous and aqueous solutions.
- Easy calibration via a two-point calibration with an oxygen-free environment (nitrogen, sodium sulfite) and an air-saturated environment.
- Fast response time t90 ≤3 seconds (in gas phase) t90 ≤30 seconds (in pure water).
- Retractable up to 10 mm.
- No oxygen consumption during measurements.
The BioOxy is ideally adapted for examination of small sample volumes to its miniature sensor tip diameter of less than 50 μm. The BioOxy is well suited for long-term measurements and biotechnological applications. The signal does not depend on the flow rate of the sample and the measurement principle requires no contact.
The physical principle is based on quenching of luminescence, which is caused by the collision between molecular oxygen and a luminescent dye molecule in the excited state. There is a direct relationship between the measured phase angle and oxygen concentration. The phase angle decreases when oxygen is present in your sample. The transfer of the emitted light signal is done optically using high quality fused silica fibers, ensuring a contact performance lot-to-lot.
