Customized needle pH micro sensor, min 3 pcs
Product #
PH10475
Customs tariff #
90279000
Shipping weight
0.85 kg
Country of origin
DE
250.00 (EUR)
Features
- BOBS™ compatible
- High spatial resolution (<140 µm)
- No reference electrode needed
- High temporal resolution (1-2 sec)
- Measurement range: 5.5 - 9 pH
- No reference electrode needed
- Immune to electrical and magnetic interference
- pH sensing based on average luminescence lifetime detection (patented DLR technology)
This fiber optic micro pH sensor is housed inside a 70 mm long syringe needle compatible with the sample holder for our BOBS™ instrument to allow real-time measurements of pH in micro liter samples.
The pH sensitive tip of the optical fiber is protected inside a stainless steel needle, but for measurement purposes the tip can be exposed by pressing a plunger. This design allows for easy penetration through skin, a rubber septum or any other harsh material as well as for secure transportation and insertion.
Data
This is product data for the selected system:
| Measurement range | 5.5 - 8.5 pH |
| Resolution | at pH = 7: ± 0.02 pH |
| Accuracy | at pH = 7: ± 0.1 pH with sensor calibration |
| Drift | at pH = 7: < 0.05 pH per day (sampling interval of 1 min.) |
| Measurement temperature range | from +5 to +50 °C |
| Response time (t90) | at 25 °C: < 30 sec. |
| Compatibility | Aqueous solutions, ethanol (max. 10 % v/v), methanol (max. 10 % v/v), pH 2 - 10 |
| No cross-sensitivity | Electrical fields, proteins |
| Cross-sensitivity | Reduced to ionic strength (salinity); a high concentration of small fluorescent molecules in the visible range can interfere |
| Sterilization procedure | Ethylene oxide (Et0), recalibration recommended |
| Cleaning procedure | Water, Acrylan, pepsin solution |
| Calibration | pH sensors are pre-calibrated; recalibration is possible |
| Storage stability | 24 months provided the sensor is stored in the dark |
Included
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Optional
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