Contactless Online Oxygen and pH Monitoring

Spinner Flask with Integrated Oxygen and pH Sensors SPS-HP5-PSt3

This disposable plastic spinner flasks with integrated O2 & pH sensors is available in volumes of 500, 1,000, and 3,000 mL. The flask is delivered irradiated and pre-calibrated. It can be read out with one of the Fibox or OXY series and the pH-mini series meters. For securely connecting the polymer optical fiber to the spinner flask the Adapter for Round Containers ARC is applied.

  • Ready-to-use
  • Pre-calibrated sensors
  • Contactless measurement
  • For cell culture
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Specifications Oxygen pH*

* provided Spinner Flasks are used without further handling in physiological solutions
** at 100 rpm & in cell culture media

Measurement range 0 - 100 % O2 5.5 - 8.0 pH
Resolution ± 0.01 % O2 at 0.21 % O2
± 0.1 % O2 at 20.9 % O2
± 0.02 pH at pH = 7**
Accuracy ± 0.4 % O2 at 20.9 % O2
± 0.05 % O2 at 0.2 % O2
± 0.1 pH at pH = 7 with one-point adjustment
± 0.2 pH at pH = 7 with pre-calibration
Drift < 0.01 % O2 per day
(sampling interval of 1 min.)
< 0.01 pH per day
(sampling interval of 1 min.)
Measurement temperature range from + 5 to + 50 °C
Response time (t90)** at 25 °C: < 60 sec.
Compatibility Aqueous solutions, ethanol (max. 10 % v/v), methanol (max. 10 % v/v), pH 2 - 10
Cross-sensitivity Typically no cross-sensitivity in culture media Reduced to ionic strength (salinity); a high concentration of small fluorescent molecules in the visible range can interfere
Calibration Pre-calibrated
  Sensor flasks are delivered irradiated.

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