Persee GWB-1 / GWB-1super / GWB-2 Ultra-Pure Water System
| Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Model | GWB-1 / GWB-1super / GWB-2 |
| Purified Water Grade | ASTM Type I (Ultra-Pure) |
| Resistivity | 18.2 MΩ·cm @ 25 °C |
| Total Organic Carbon (TOC) | ≤ 5 ppb |
| Bacterial Count | < 1 CFU/1000 mL |
| Particulates (>0.22 µm) | < 1 /mL |
| Endotoxin | < 0.001 EU/mL |
| Cation/Anion Residue | < 0.1 ppb |
| Key Components | Imported RO Membrane, Imported Ultra-Purification Cartridge, Imported Final-Stage 0.22 µm Filter |
Overview
The Persee GWB-1, GWB-1super, and GWB-2 Ultra-Pure Water Systems are engineered for laboratories requiring continuous, on-demand production of ASTM Type I ultrapure water compliant with ISO 3696:1987, CLSI EP21-A, and USP . These systems integrate multi-stage purification—including pretreatment, reverse osmosis (RO), electrodeionization (EDI) or mixed-bed ion exchange, and final ultrafiltration—to remove ionic, organic, particulate, microbial, and endotoxin contaminants. The core architecture employs a closed-loop recirculation loop with UV irradiation (185/254 nm) to suppress microbial regrowth and maintain TOC stability. Designed for integration into analytical workflows—such as HPLC, LC-MS, ICP-MS, cell culture, and molecular biology—the systems deliver water meeting stringent specifications for critical applications where background interference must be minimized.
Key Features
- Two independent dispensing modes: momentary press for single-use activation and sustained press for continuous volumetric delivery
- Volumetric dispensing capability for both ultrapure water and bulk purified water, supporting programmable volume output (10 mL to 99.9 L) with ±2% accuracy
- GLP-compliant audit trail functionality: time-stamped, user-identifiable records of all dispense events—including volume, timestamp, operator ID, and water quality parameters at point-of-use—stored locally with export via USB
- Critical purification components sourced from certified international suppliers: high-rejection thin-film composite RO membrane, regenerable or disposable ultra-purification cartridges containing nuclear-grade ion exchange resins and activated carbon, and sterile-grade 0.22 µm hydrophilic PES final filters
- Real-time resistivity monitoring with temperature compensation (25 °C), integrated TOC sensor (optional on GWB-1super/GWB-2), and automatic system self-diagnosis with visual and audible alerts for cartridge exhaustion or pressure anomalies
Sample Compatibility & Compliance
These systems produce water suitable for direct use in sensitive instrumentation and biological assays without further treatment. All models meet or exceed the requirements for Type I water per ASTM D1193-20, ISO 3696:1987, and CLSI EP21-A. The GWB-1super and GWB-2 variants support optional endotoxin monitoring and include additional safeguards for pharmaceutical and biotechnology applications—such as non-leaching wetted materials (316L stainless steel and medical-grade PEEK/PVDF fluid paths), leak detection sensors, and configurable alarm thresholds aligned with FDA 21 CFR Part 11 data integrity expectations. Full compliance documentation—including material certifications, component traceability reports, and factory calibration certificates—is provided upon installation.
Software & Data Management
The embedded control interface supports multi-user authentication with role-based access (operator, supervisor, administrator). All dispense logs are stored in a tamper-evident internal database with cyclic overwrite protection and manual export capability via USB flash drive in CSV format. Audit trail entries include: date/time stamp, user login ID, dispense volume, measured resistivity, TOC value (if equipped), and cartridge status indicators. Optional Ethernet or RS232 connectivity enables integration with laboratory information management systems (LIMS) for centralized monitoring and automated report generation. Data retention complies with GLP and GMP record-keeping requirements (minimum 12 months).
Applications
- HPLC and UHPLC mobile phase preparation and column equilibration
- LC-MS and ICP-MS solvent blanks and calibration standards
- Preparation of reagents for PCR, qRT-PCR, NGS library construction, and CRISPR-based editing workflows
- Cell culture media formulation and buffer preparation for monoclonal antibody production
- Atomic absorption spectroscopy (AAS) and graphite furnace analysis
- Calibration of conductivity and TOC analyzers in metrology labs
FAQ
What is the maximum flow rate for ultrapure water output?
Typical flow rates range from 1.5 to 2.0 L/min at point-of-use, depending on feed water quality, ambient temperature, and selected model configuration.
How often must consumables be replaced?
RO membrane service life is typically 2–3 years under standard municipal feed conditions; ultra-purification cartridges require replacement every 6–12 months based on usage and inlet water hardness; final 0.22 µm filters are replaced every 3–6 months or after 1000 L of dispensed water.
Does the system support remote monitoring?
Yes—GWB-1super and GWB-2 models offer optional Ethernet connectivity for real-time status dashboard viewing and alarm notification via SNMP or Modbus TCP protocols.
Is validation documentation available?
Persee provides IQ/OQ protocol templates, DQ summaries, and factory test reports aligned with ISO/IEC 17025 and GAMP 5 principles; site-specific PQ support is available through authorized service partners.
Can the system be connected to multiple points of use?
Yes—systems can be configured with distribution manifolds supporting up to four simultaneous dispensing points, each with independent flow control and quality monitoring.
