RUNRONG INSTRUMENT H-U High-Purity Hydrogen Generator for GC & GC-MS
| Brand | RUNRONG INSTRUMENT |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | H-U |
| Pricing | Upon Request |
| Hydrogen Generation Principle | Pure Water Electrolysis via PEM (Proton Exchange Membrane) |
| Output Flow Rate | 0–630 mL/min |
| Output Pressure | 0.4 MPa |
| Hydrogen Purity | ≥99.9995% (5.5N+) |
| Power Consumption | 550 W |
Overview
The RUNRONG INSTRUMENT H-U High-Purity Hydrogen Generator is an engineered solution designed specifically to serve as a reliable, on-demand hydrogen source for gas chromatography (GC) and gas chromatography–mass spectrometry (GC-MS) systems from leading manufacturers including Shimadzu, Agilent, Thermo Fisher, PerkinElmer, and Waters. It employs proton exchange membrane (PEM) electrolysis of deionized water—eliminating the need for alkaline electrolytes or metal hydride cartridges—and delivers ultra-high-purity hydrogen with minimal operator intervention. Unlike traditional cylinder-based supply, the H-U provides consistent flow and pressure control across the full operational range (0–630 mL/min at 0.4 MPa), ensuring stable carrier gas performance critical for retention time reproducibility, peak symmetry, and detector sensitivity in capillary GC applications.
Key Features
- PEM-based pure water electrolysis architecture ensures intrinsic safety, zero chemical carryover, and long-term stability without KOH replenishment or electrode corrosion.
- Dual-stage purification system: integrated continuous-regeneration desiccant beds coupled with high-efficiency catalytic deoxygenation and trace hydrocarbon removal—achieving sustained purity ≥99.9995% (5.5N+), verified by real-time thermal conductivity detection.
- Intelligent water management: automatic reservoir refill detection, low-water-level alarm with audible/visual notification, and fail-safe shutdown to prevent PEM stack dry-out and irreversible membrane degradation.
- Real-time leak monitoring via embedded pressure decay analysis and electrochemical hydrogen sensors; triggers immediate venting and system lockout upon threshold breach per IEC 61000-6-4 and UL 61010-1 requirements.
- Robust industrial-grade enclosure rated IP20, conforming to CE, RoHS, and EMC directives; designed for continuous 24/7 operation in analytical laboratories compliant with ISO/IEC 17025 quality management systems.
Sample Compatibility & Compliance
The H-U is fully compatible with all major GC and GC-MS platforms requiring ultra-high-purity hydrogen as carrier, fuel, or make-up gas—including flame ionization detectors (FID), thermal conductivity detectors (TCD), pulsed discharge helium ionization detectors (PDHID), and electron capture detectors (ECD). Its output meets ASTM D7895-15 specifications for carrier-grade hydrogen and exceeds USP and EP 2.5.27 requirements for pharmaceutical residual solvent analysis. The system supports audit-ready operation under GLP and GMP environments through optional firmware-enabled logging of runtime, pressure events, water level history, and alarm records—fully traceable and exportable in CSV format.
Software & Data Management
While the H-U operates autonomously via embedded microcontroller logic, it includes RS-232 and optional Ethernet interfaces for integration into laboratory information management systems (LIMS) and centralized instrument monitoring networks. All operational parameters—including flow setpoint, actual output, stack temperature, reservoir level, and purification cycle status—are accessible via ASCII command protocol. Data logs comply with FDA 21 CFR Part 11 requirements when used with validated third-party data acquisition software supporting electronic signatures and audit trails.
Applications
- Carrier gas supply for capillary GC columns (e.g., DB-5ms, HP-INNOWAX, Rtx-1) in environmental, petrochemical, food safety, and forensic testing labs.
- Fuel gas for FID and methanizer-equipped TCDs, enabling sub-ppb detection limits in volatile organic compound (VOC) profiling.
- Reagent gas in hydride generation atomic absorption spectroscopy (HG-AAS) and plasma-based elemental analysis.
- Calibration gas dilution systems requiring stable, moisture-free hydrogen background.
- On-site hydrogen supply for portable GC units deployed in field-deployable environmental monitoring stations.
FAQ
What is the recommended feed water specification?
Deionized water with resistivity ≥18.2 MΩ·cm and total organic carbon (TOC) <5 ppb is required to maintain PEM longevity and avoid catalyst poisoning.
Can the H-U be integrated with Agilent OpenLab CDS or Shimadzu LabSolutions?
Yes—via RS-232 serial communication using custom script integration or third-party middleware supporting Modbus RTU protocol.
Does the unit require periodic consumable replacement?
No scheduled consumables are required; the continuous-regeneration purification system eliminates routine desiccant or filter cartridge changes typical of competitive models.
Is remote monitoring supported out-of-the-box?
Basic telemetry is available via RS-232; Ethernet and SNMP-based remote supervision require optional firmware upgrade and configuration by authorized service personnel.
How does the H-U handle power interruptions?
Upon power loss, the system performs controlled shutdown, retains all calibration and operational history in non-volatile memory, and resumes normal operation—including auto-refill sequence—upon power restoration without manual reset.
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