Maintaining precise pH and redox (ORP) control is essential in fermentation and bioprocessing applications. Laboratory-scale fermentors and culture vessels require compact, high-precision electrodes that can withstand harsh sterilization conditions while delivering reliable measurements. To meet these demands, miniature micro autoclavable combination pH and redox electrodes have been designed specifically for 台式发酵罐 and culture apparatus.
These electrodes feature a space-saving 6mm outer diameter (O.D.), making them ideal for small vessels, shallow culture flasks, and compact benchtop systems. For applications requiring a larger diameter, a 12mm version is also available. The electrodes are designed to fit standard 6mm and 12mm electrode holders or rubber stoppers, ensuring easy integration into existing setups.
Designed for Precision and Durability
Unlike standard laboratory electrodes, these miniature pH and redox micro autoclavable sensors are built to endure the high temperatures and rigorous conditions of fermentation environments. They can withstand steam sterilization and autoclaving up to 130°C, making them suitable for repeated sterilization cycles without compromising accuracy.
A key design feature of these electrodes is their customizable immersion length, which ranges from 25mm to 300mm. This flexibility allows users to choose the precise length required for their specific fermentation vessel, ensuring the electrode reaches the optimal depth for accurate monitoring.
Additionally, the electrodes utilize the pHoenix detachable cable system, hence, allowing the electrode body to be autoclaved separately from the cable assembly. This prevents damage to sensitive connectors, extending the lifespan of both the electrode and the cable.
Enhanced Stability with a Double Junction Reference System
To ensure long-term stability and resistance to contamination, these micro autoclavable electrodes incorporate a double junction reference system. This design helps prevent electrode poisoning, a common issue in fermentation applications where reactive ions like sulfide can form deposits inside the reference junction. The double electrolyte bridge acts as a barrier, preventing these ions from reaching the silver chloride (AgCl) reference system, which enhances both measurement reliability and electrode longevity.
In addition, the annular ceramic reference junction, which surrounds the pH sensing bulb, reduces the risk of clogging, a frequent problem in high-solid-content fermentation media. This ensures consistent readings over extended use, even in challenging bioprocessing environments.
Applications of Micro Autoclavable Electrodes in Fermentation and Bioprocessing
These miniature sterilizable electrodes are ideal for microbial fermentation, cell culture, and biopharmaceutical production, where precise pH and redox monitoring is critical to process success. Common applications include:
- Bioreactors & Fermentors – Used in bacterial, fungal, and yeast-based fermentation for pharmaceuticals, enzymes, and biofuels.
- Pharmaceutical & Biotechnology Research – Applied in antibiotic production, vaccine development, and protein expression studies.
- Food & Beverage Fermentation – Essential for beer brewing, yogurt and cheese production, and probiotic cultures.
- Academic & Industrial Research – Ideal for R&D studies involving small-scale culture experiments.
Ordering and Compatibility
When ordering, users must specify the required immersion length (“A”), which is the distance from the penetration point inside the vessel to the tip of the electrode. This ensures proper positioning for accurate and consistent readings.
The detachable electrode cable is sold separately and must be ordered based on system compatibility. With the right configuration, these steam-sterilizable electrodes provide high accuracy, durability, and seamless integration into a variety of fermentation and culture applications.
By incorporating these advanced pH and redox electrodes into their processes, researchers and industrial users can improve measurement reliability, extend electrode lifespan, and maintain optimal conditions for fermentation success.
Specifications of our Micro Autoclavable Electrodes
|
pH Electrodes: |
Sealed Type pH Electrodes: |
||
|
A573702-“A”-DL |
Combination refillable pH electrode, detachable lead connector, 6mm O.D. stem, -5° to 130°C, 0 to 13 pH |
S573701-“A”-DL |
Combination sealed pH electrode, detachable lead connector, 6mm O.D. stem, -5° to 130°C, 0 to 13 pH |
