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Cell Culture Tubes with Integrated pH Sensors
The iTube pH consists of a plastic tube with integrated and pre-calibrated pH sensor spots. They are read out by the SFR Shake Flask Reader or SFR vario in combination with the specially designed iTube adapters. A small plastic adapter piece on the tube bottom allows correct positioning of the tube on the SFR / SFR vario.
- For microbes & cell cultures
|* provided iTubes pH are used without further handling in physiological solutions|
** at 100 rpm & with cell culture media
|Measurement range||pH 5.5 - 8.0|
|Resolution**||at pH = 7: ± 0.01 pH|
|Drift||< 0.01 pH per day (sampling interval 1 min.)|
|Measurement temperature range||from + 5 to + 50 °C|
|Response time (t90)**||at + 25 °C: < 60 sec.|
|Campatibiity||Aqueous solutions, ethanol (max. 10 % v/v), methanol (max. 10 % v/v), pH 2 - 10|
|Cross-sensitivity||Reduced to ionic strength (salinity); a high concentration of small fluorescent molecules in the visible range can interfere.|
|Calibration||iTubes are delivered irradiated|
|Storage stability||12 months provided the sensor is stored in the dark|
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