Needle-type oxygen microsensor, min 3 pcs

(0-100 % oxygen)

Needle Type Micro Oxygen Sensor
Needle Type Micro Oxygen Sensor

Features

  • High spatial resolution (<50 μm)
  • No self-consumption of oxygen
  • Penetration probe for insertion into vessels, sediments or biofilms
  • Penetration through septa or skin
  • Easy to handle
  • Different needle sizes and lengths available
  • Signal independent of flow velocity
  • No time for polarization necessary
  • Insensitive towards electrical interferences and magnetic fields
  • Measures oxygen in both liquids and the gas phase
  • Optimal measuring range from 0 to 50 % oxygen (0-22.6 mg/L)
  • Maximum measuring range from 0 to 100 % oxygen
  • Limit of detection 0.2 % air sat., 20 μmol/L
  • Sterilizable (H2O2, EtOH)

 

Micro oxygen sensors designed for all research applications were a small tip size and a fast response time (<3 sec) is necessary.

Needle-type oxygen microsensors are ideal for animal physiology and for oxygen distribution profiling in sediments or biofilms with micro-manipulators for high spatial resolution. The oxygen-sensitive tip of an optical fiber is protected inside a stainless-steel needle. This design allows for easy penetration through a rubber septum or any other harsh material as well as for transportation.

Data

This is product data for the selected system:

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 1 % O2 | ± 0.05 % O2 at 20.9 % O2 (± 0.005 mg/L at 0.4 mg/L | ± 0.025 mg/L at 9.06 mg/L)
Accuracy ± 0.05 % O2 or ± 3 % rel.
Measurement temperature range from 0 to + 50 °C
Response time (t90) < 3 sec. (gas) | < 10 sec. (liquid)
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 Ethylene oxide (EtO)
Cleaning procedure 3 % H2O2 | Ethanol | Soap solution
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 at room temperature

Included

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Optional

These products are optional for the selected system:

Instruments

OXY 1 ST Trace Front Web
OXY-1 ST Trace

Files

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