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Oxygen Monitoring in 20 mL Vial with Autoclavable Oxygen Sensor

SensorVial SV-PSt3-20mL-YST

The SensorVial is a 20 mL glass vial with an integrated optical oxygen sensor stripe. It is connected to the transmitter by an optical fiber. With the Vial Adapter the optical fiber can be positioned in different heights for oxygen measurements. The SensorVial SV-PSt3-20mL-YST is autoclavable, and the ideal tool for respiration measurements. Since the sensor spots are optically isolated with a black layer they are also very well suited for photosynthesis measurements. For non-stirred applications vials with a sensor stripe, that reaches all the way to the bottom are also available. Oxygen can be measured simultaneously in liquid and headspace.

  • Non-invasive online oxygen measurements
  • No consumption of oxygen
  • Signal independent of flow velocity
  • Oxygen measurements in liquid and gas phase
  • Autoclavable
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Applications

Respiration & Photosynthesis: Oxygen Monitoring in Glass Vials

Determination of respiratory activity is often performed for water organisms such as invertebrates, larval stages or eggs, but also for bacteria, cell cultures, yeasts or fungi. For algae measurement of photosynthetic activity is of great interest. Using our 20 mL SensorVial with an integrated sensor stripe oxygen can be measured simultaneously in the liquid sample and in the headspace. Autoclavable SensorVials for stirred and non-stirred applications are available.


Technical

Specifications Gaseous & Dissolved O2 Dissolved O2
*after two-point calibration as described in the manual
Measurement range

0 – 100 % O2

0 – 1000 hPa

0 – 45 mg/L

0 – 1400 µmol/L
Limit of detection 0.03 % oxygen 15 ppb
Resolution

± 0.01 % O2 at 0.21 % O2
± 0.1 % O2 at 20.9 % O2
± 0.1 hPa at 2 hPa

± 1 hPa at 207 hPa

± 0.004 mg/L at 0.091 mg/L
± 0.04 mg/L at 9.1 mg/L
± 0.14 µmol/L at 2.83 µmol/L

± 1.4 µmol/L at 283.1 µmol/L
Accuracy* ± 0.4 % O2 at 20.9 % O2
± 0.05 % O2 at 0.2 % O2
 
Drift < 0.03 % O2 within 30 days (sampling interval of 1 min. / at 0% oxygen)
Measurement temperature range from 0 to + 50 °C
Response time (t90) < 6 sec. < 40 sec.
Properties    
Compatibility Aqueous solutions, ethanol, methanol
No cross-sensitivity

pH 1 – 14
CO2, H2S, SO2
Ionic species

Cross-sensitivity Organic solvents, such as acetone, toluene, chloroform or methylene chloride
Chlorine gas
Sterilization procedure Steam sterilization
Ethylene oxide (EtO)
Gamma irradiation
Cleaning procedure Cleaning in place (CIP, 2 % NaOH, + 80 °C, + 176 °F)
3 % H2O2
Acidic agents (HCl, H2SO4), max. 4 – 5 %
Calibration Two-point calibration with oxygen-free environment (nitrogen, sodium sulfite) and air-saturated environment
Storage stability 24 months provided the sensor material is stored in the dark

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