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Cell Culture Tubes with Integrated pH Sensors
iTube pH
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.
- Ready-to-use
- Pre-Calibrated
- For microbes & cell cultures
Technical
Specifications* | |
---|---|
* 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. |
Properties | |
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 pre-calibrated |
Storage stability | 12 months provided the sensor is stored in the dark |