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Oxygen Monitoring in Glass Vials with the SDR SensorDish® Reader
These 2 mL glass vials have an optically isolated oxygen sensor type PSt5 integrated at the bottom. This sensor is read out with the SDR SensorDish® Reader. The SensorVials fit into a 24-well plate, which is placed on the reader for easy positioning. They are ideally suited for respiration monitoring in small aquatic organisms. In combination with the Mask for SensorVials SDR-MSV24 they can also be applied for photosynthesis experiments (up to 50 % O2). The mask shields the reader optics from artificial light so precise optical oxygen measurements can be recorded. The SV-PSt5-2mL can be cleaned with ethanol and are re-usable.
- Contactless oline oxygen monitoring
- Parallel measurements in up to 24 samples (with one SDR)
- Ideal for respiration monitoring
Real-time Monitoring of the Respiration of Marine Zooplankton
Oxygen consumption of 3 - 4 copepod nauplii per sample was monitored in air-tight glass vials for 6 h. The nauplii were offered phytoplankton at environmental concentrations. Feeding and faecal pellet production rates were estimated simultaneously. The respiration rates were linear and steady, thus revealing that the nauplii were neither influenced by the vessel walls nor by diminishing of food. The respiration rate was compared to literature values of other species.The higher oxygen consumption of the nauplii was presumably due to constant feeding.
Dr. Marion Köster, Ernst-Moritz-Arndt-Universität Greifswald, Germany, Mar Ecol Prog Ser 353: 157-164 (2008)
|*in H20 dest. or oxygen-free water, at + 37 °C|
|Measurement range||0 - 50 % O2|
|Resolution*||± 0.4 % O2|
|Accuracy*||± 1 % O2|
|Drift*||< 0.2 % O2 wihtin one week (sampling interval 10 min.)|
|Measurement temperature range||from + 15 to + 45 °C|
|Response time* (t90)||< 30 sec.|
|Compatibility||Aqueous solutions, ethanol (max. 10 % v/v), methanol (max. 10 % v/v), pH 2 - 10|
|Maximum filling volume||2.8 mL|