High Temperature (0-130℃) pH Sensor
Ruggedized glass membrane designed for intense thermal duty, CIP/SIP procedures, and consistent bioprocess monitoring.
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Direct From ISO 9001 Certified Factory
Precision pH Sensors for Industrial & Fermentation Processes
Engineered for high-temperature resilience, steam sterilization, and pre-sterilized single-use bag integration across bioprocess workflows.
Pharma Fermentation pH Sensor
Specialized electrolyte formula minimizing reference poisoning in protein-rich broths and cellular suspension tanks.
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High Temp (0-130℃) Sensor + Temp
Integrated PT100/PT1000 temperature compensation element within single envelope for dynamic Nernstian slope correction.
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S8 Connector High-Temp pH Sensor
Industry-standard S8 screw cap connector with hermetic sealing, ideal for bioreactor headplates and flow-cell manifolds.
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pH5806 Shanghai Brand pH Sensor
Awarded Shanghai Brand certification; engineered for repeated steam cycles without calibration drift or diaphragm failure.
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IOT-485-pH Digital Online pH Sensor
Direct RS485 Modbus RTU telemetry output for direct bag-to-PLC connectivity, removing transmitter hardware footprints.
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pHG-2081Pro Online pH Analyzer
Multi-channel transmitter handling dual pH/ORP inputs with relay alarms and isolated analog 4-20mA process signals.
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DCA130 pH & Conductivity Controller
Simultaneous monitoring of pH and electrical conductivity for buffer dilution and tangential flow filtration (TFF) systems.
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Strategic Sourcing & Bioprocess Supply Chains
The Paradigm Shift Toward Single-Use pH Sensing Systems
Biopharmaceutical Contract Development and Manufacturing Organizations (CDMOs) and vaccine manufacturers are transforming upstream footprints by replacing multi-use stainless steel clean-in-place infrastructure with single-use technology (SUT).
Total Cost of Ownership (TCO)
Traditional glass sensor assemblies require rigorous autoclaving, manual calibration, chemical validation, and extensive documentation for Clean-in-Place (CIP) and Steam-in-Place (SIP) routines.
Single-use pH sensors eliminate cross-contamination risk, reduce turnaround intervals between production campaigns from days to mere hours, and save tens of thousands of gallons of Water for Injection (WFI).
Batch Risk Minimization
In high-density cell cultures (such as CHO lines expressing monoclonal antibodies), pH excursions outside ±0.05 pH units alter glycosylation patterns and lower target product titer.
Single-use optical spots and dry-stored pre-calibrated electrochemical probes pre-welded into disposable bioprocess containers ensure sterile integrity without breach risks associated with insertion probes.
Regulatory PAT Compliance
Global regulatory bodies like the US FDA and EMA enforce Quality by Design (QbD) and Process Analytical Technology (PAT) initiatives requiring continuous, non-invasive parameter verification.
Modern single-use sensors integrate digital transmitter architectures with internal calibration certificates encoded directly in factory RFID chips or 2D barcodes, enabling instant automated setup in SCADA architectures.
2007
Established In Shanghai
4,632 m²
Factory Floor Space
100,000+
Sensors Produced Annually
100+
Countries Served
2,000+
Enterprise Clients
Industrial Matrix & Application Engineering
Engineered Configurations Across Global Biopharma & Industrial Verticals
Matching electrochemical sensor geometries and fluorophore sensor spots to the thermodynamic and chemical realities of each process environment.
Monoclonal Antibodies & Recombinant Proteins
Continuous perfusion bioreactors running 30 to 60-day campaigns require sensors with negligible drift. BOQU single-use electrochemical sensors utilize polymerized reference electrolytes and non-fouling ceramic junctions that prevent silver-sulfide blockage and minimize ionic drift under sustained 37°C bioprocess conditions.
Vaccine & Viral Vector Manufacturing
Gene therapy vectors (AAV, Lentivirus) and mRNA lipid nanoparticle formulations exhibit delicate physical shear sensitivities. Pre-sterilized single-use pH flow cells integrate directly into disposable downstream purification skids, verifying critical buffer pH during depth filtration and chromatography elution.
Downstream Buffer Preparation & Formulation
Automated inline buffer dilution requires wide dynamic measuring range (pH 2.0 to 12.0) and ultra-rapid response times. Our integrated dual pH/Conductivity analytical loops monitor real-time blending ratios, preventing precipitated monoclonal batches caused by uneven acid/base additions.
| Analytical Metric | Optical Fluorophore Spots | Pre-Calibrated Gel Glass Sensor | Solid-State ISFET Chips |
|---|---|---|---|
| Measuring Principle | Fluorescence Phase Shift (Dual Lifetime Ref.) | Potentiometric Ag/AgCl Gel Junction | Ion-Sensitive Field-Effect Transistor |
| Dynamic Range | pH 5.5 to 8.5 (Narrow Range) | pH 0.00 to 14.00 (Full Spectrum) | pH 2.00 to 12.00 (Broad Range) |
| Gamma Radiation Resistance | High (25 - 50 kGy pre-sterilized) | Moderate (requires specialized protective casing) | Requires radiation-hardened gate dielectrics |
| Long-term Drift (14-day) | < 0.10 pH (Photobleaching dependent) | < 0.05 pH (Zero reference loss) | < 0.08 pH (Thermal compensation critical) |
| Ideal Application | Small-scale Wave bags, Shake flasks | Production 50L - 2,000L SUBs, Fermenters | Downstream TFF skids, High-viscosity slurries |
R&D Architecture & Materials Science
Technical Roadmap: Engineering the Next Generation of Single-Use pH Sensors
Addressing the core technical challenges: Gamma radiation compatibility, electrolyte hydration shelf-life, and zero-drift factory pre-calibration.
Gamma-Sterilization Resilience
Bioprocess single-use assemblies undergo lethal gamma irradiation (25–50 kGy) prior to shipping. Standard pH glass membranes darken, causing structural lattice defects and asymmetrical membrane potentials.
BOQU's specialized high-purity glass formulation and radiation-stabilized fluorophore dyes resist ionizing damage, maintaining initial offset accuracy within ±0.03 pH units post-irradiation.
Dry-Storage & Rehydration Technology
Traditional pH sensors demand liquid KCl storage solution, posing leakage hazards during single-use bag folding, transport, and long shelf lives. Our technical roadmap incorporates specialized hydrogel matrices that remain stable dry for up to 24 months, rapidly rehydrating within 15 minutes of media contact without requiring off-line buffering.
IoT Digital Architecture & Factory RFID
Eliminating manual user calibration errors during cleanroom setup: BOQU single-use sensor models store pre-calibrated Nernstian slope, zero point, and batch serial numbers directly inside an onboard memory chip or integrated RFID tag. Direct RS485 Modbus RTU telemetry connects straightforwardly into Siemens, Emerson DeltaV, and Rockwell DCS systems.
Global Supply Chain & Regulatory Verification
China Sourcing Advantages & Global Pharmacopeia Compliance
How Shanghai BOQU Instrument delivers cost-effective supply chain resilience without compromising regulatory rigor or quality oversight.
USP Class VI & Animal-Free Validation
All process-wetted polymeric materials used in our single-use sensor ports and fittings are stringently qualified under USP <87> and <88> Class VI biological reactivity standards. They are certified BSE/TSE-free, ensuring zero leachables or extractables compromise pharmaceutical therapeutic purity.
Agile OEM & Custom Mechanical Integration
Whether you require standard 1-inch barb connectors, PG13.5 bioreactor threads, kleenpak sterile connectors, or customized port assemblies for multi-layer bioprocess bags, our Shanghai engineering team delivers custom rapid tooling, prototyping, and sterile batch packaging tailored to your specifications.
Traceability & Quality System
Operated strictly under ISO 9001 and ISO 14001 certified protocols, every batch is verified against traceable NIST standard buffer solutions. Comprehensive validation documentation packs—including Extractables & Leachables (E&L) dossiers and lot-specific calibration certificates—support client filing with the FDA, EMA, or NMPA.
Expert Knowledge Base
Frequently Asked Technical & Procurement Questions
In-depth responses from BOQU analytical engineers covering installation, sensor lifetime, sterility assurance, and signal integration.
How do BOQU single-use pH sensors handle gamma irradiation without losing calibration?
Gamma sterilization creates localized ionization and free radicals that typically degrade standard silicate glass and alter the hydration layer of reference junctions. BOQU single-use sensors utilize specialized doped glass compositions and proprietary radiation-tolerant polymer electrolytes. Pre-sterilization characterization allows our engineering line to mathematically offset radiation-induced potential shifts, meaning the sensor remains within ±0.05 pH units of factory calibration when rehydrated inside the customer's cleanroom.
Can single-use pH sensors replace autoclaved reusable sensors in microbial fermentation?
Yes, subject to process temperature and oxygenation requirements. For high-density bacterial fermentations (such as E. coli) generating high heat and requiring aggressive agitation, our high-temperature sensors (e.g., pH5806, withstands 0-130°C) or specialized single-use electrochemical glass sensors with pressurized gel systems are recommended over optical spots, as optical sensors can suffer photobleaching or range saturation above pH 8.5.
What are the shelf-life and storage conditions for pre-installed single-use sensors?
BOQU dry-storage single-use electrochemical sensors are validated for a shelf life of 12 to 24 months when stored at room temperature (15–25°C) in moisture-barrier packaging. Optical fluorophore spots exhibit shelf lives exceeding 24 to 36 months, provided they are shielded from ambient UV radiation and direct sunlight exposure.
What communications protocols are supported for direct bioreactor DCS integration?
Our IoT sensor series (such as IOT-485-pH) outputs native RS485 Modbus RTU directly from the sensor head, eliminating intermediate transmitter hardware. For conventional industrial automation topologies, we supply controllers providing dual 4–20 mA analog outputs, relay contacts, and optional Profibus or Ethernet-based interfaces for integration into DeltaV, Siemens PCS7, or programmable logic controllers (PLCs).
What documentation is provided to support client regulatory audits (FDA/EMA)?
We provide complete regulatory support dossiers, including Certificate of Analysis (CoA) with batch-specific NIST calibration records, USP <87> and <88> Class VI biological reactivity test certifications, Animal-Derived Component Free (ADCF) statements, and extractable/leachable profile summaries to streamline your regulatory submission process.
Comprehensive Catalog
Explore Our Complete Analytical Instrumentation Lineup
Pairing high-performance electrodes and single-use sensors with field-tested transmitters, optical analyzers, and dual-channel monitors.
0-130℃ High-Temp pH Sensor
Robust glass formulation optimized for continuous exposure to hot biopharmaceutical cell media and repeated SIP cycles.
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Pharma Fermentation pH Probe
Gel reference barrier resists protein precipitation and diaphragm clogging throughout prolonged cellular fermentation.
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High Temp Sensor (w/ Temp RTD)
Embedded thermal element ensures millivolt measurements are accurately transformed into temperature-corrected pH values.
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S8 Connector High-Temp Sensor
Standardized S8 socket connection offering IP68 moisture protection and seamless field replacement on bioreactor ports.
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DOG-208FA High Temp DO Sensor
Sterilization-proof polarographic dissolved oxygen electrode built to accompany pH monitoring in critical fermentation broths.
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ZDYG-2088-01QX Turbidity Sensor
Infrared optical backscatter turbidity and suspended solids sensor for monitoring cell density and clarify downstream filtrates.
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SJG-2083CS Concentration Meter
Toroidal inductive conductivity analyzer monitoring caustic and acid concentration for automated biopharma CIP skids.
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TOC-3042 Online TOC Analyzer
Continuous total organic carbon monitor for pharmaceutical Water For Injection (WFI) loops and pure steam condensate validation.
Product SpecsConsult a BOQU Application Engineer Today
Discuss your single-use bag dimensions, gamma sterilization protocols, mechanical port requirements, and OEM private-label pricing directly with our factory specialists.