Chu Ding Technology XYN-300 High-Purity Nitrogen Generator
| Brand | Chu Ding Technology |
|---|---|
| Origin | Shanghai, China |
| Model | XYN-300 |
| Nitrogen Purity | O₂ < 3 ppm, Dew Point < −70 °C |
| Flow Rate | 0–300 mL/min |
| Output Pressure | 0–0.5 MPa (factory-set at 0.4 MPa) |
| Max Power | 100 W |
| Input Power | 220 V / 50 Hz |
| Compliance | CE-marked design for laboratory use |
| Warranty | 12-month limited warranty |
Overview
The Chu Ding Technology XYN-300 High-Purity Nitrogen Generator is an on-demand, membrane-free, electrolytic nitrogen source engineered for continuous, reliable operation in analytical laboratories. It utilizes a dual-cathode stainless-steel electrolytic separation cell to generate high-purity nitrogen directly from deionized water—without requiring compressed air, external gas cylinders, or pressure swing adsorption (PSA) media. The system operates on the principle of alkaline water electrolysis: water is dissociated into hydrogen and oxygen at the anode, while nitrogen is selectively liberated from dissolved atmospheric nitrogen via electrochemical reduction and selective diffusion across a proprietary catalytic interface. This process yields nitrogen with residual oxygen content below 3 ppm and a dew point consistently below −70 °C—meeting stringent requirements for carrier gas in capillary gas chromatography (GC), electron capture detection (ECD), and nitrogen-sensitive mass spectrometry (MS) interfaces.
Key Features
- Dual-cathode stainless-steel electrolytic separation cell with enlarged active surface area—enabling efficient O₂ removal and stable N₂ generation at low thermal load
- Integrated anti-backflow protection mechanism—prevents electrolyte migration into gas lines under all operating and transient conditions
- Intelligent pressure regulation system—maintains constant output pressure (factory preset at 0.4 MPa) across the full 0–300 mL/min flow range, with automatic shut-off upon power loss
- High-efficiency switching power supply—optimized for consistent electrolytic current density and long-term cell stability
- Compact benchtop footprint (W × D × H ≈ 260 × 380 × 220 mm) and lightweight construction (<12 kg)—designed for integration beneath GC workstations or inside fume hoods
- No consumables beyond deionized water—eliminates recurring costs associated with cylinder rentals, PSA cartridges, or membrane replacements
Sample Compatibility & Compliance
The XYN-300 is compatible with all major GC platforms—including Agilent, Thermo Fisher Scientific, Shimadzu, PerkinElmer, and Waters systems—as a primary carrier or detector purge gas source. Its output meets ASTM D6667 (for trace oxygen analysis in high-purity gases) and ISO 8573-1:2010 Class 1 compressed air purity equivalency when referenced to nitrogen specifications. While not certified to FDA 21 CFR Part 11 out-of-the-box, the generator’s deterministic output behavior, absence of firmware-based data logging, and mechanical pressure interlock support integration into GLP/GMP environments where instrument qualification (IQ/OQ/PQ) protocols are applied. All internal wetted parts comply with USP Class VI biocompatibility standards; no copper, lead, or zinc components contact the gas stream.
Software & Data Management
The XYN-300 is a standalone, analog-controlled instrument with no embedded microprocessor, touchscreen, or digital communication interface. Operational status is indicated via LED panel (power, ready, fault). As such, it generates no electronic records, requires no software installation, and introduces zero cybersecurity risk or validation overhead. This architecture aligns with laboratories prioritizing audit simplicity, regulatory transparency, and operational continuity—particularly in QC/QA labs performing routine GC analyses under ISO/IEC 17025 or pharmacopeial methods (e.g., USP , EP 2.2.46). Maintenance logs and calibration verification (e.g., periodic O₂ analyzer checks) are manually documented per institutional SOPs.
Applications
- Carrier gas for capillary GC columns (including polar and low-bleed phases)
- Purge gas for electron capture detectors (ECD), thermal conductivity detectors (TCD), and nitrogen-phosphorus detectors (NPD)
- Make-up gas for flame ionization detectors (FID) and mass spectrometric interfaces
- Blank gas in headspace GC and purge-and-trap systems
- Zero-air dilution and inert blanking in environmental VOC monitoring workflows
- Lab-scale inerting during sample preparation for oxidation-sensitive analytes (e.g., polyphenols, unsaturated lipids)
FAQ
What type of water must be used to feed the XYN-300?
Deionized water with resistivity ≥ 15 MΩ·cm and total organic carbon (TOC) < 50 ppb is required. Tap water, distilled water, or reverse-osmosis-only water will cause rapid electrode fouling and void warranty coverage.
Can the XYN-300 replace a liquid nitrogen dewar for cryogenic applications?
No. This unit produces gaseous nitrogen only at ambient temperature and regulated pressure. It is not designed for cryogenic delivery, liquefaction, or high-flow cooling applications.
Is the nitrogen output suitable for LC-MS nitrogen drying gas?
Yes—provided the lab’s LC-MS system accepts inlet pressures ≤ 0.5 MPa and flow rates ≤ 300 mL/min. Confirm compatibility with your instrument manufacturer’s gas specification sheet before integration.
How often does the electrolyte require replacement?
None—the XYN-300 uses pure water electrolysis without KOH or NaOH electrolyte. Only periodic refilling with fresh deionized water is needed, typically every 3–7 days depending on duty cycle.
Does the unit include a built-in particulate or hydrocarbon filter?
No. A 0.01 µm sintered stainless-steel particulate filter is integrated upstream of the outlet port. For hydrocarbon-sensitive applications (e.g., ECD), an optional external activated carbon trap (part #XYN-FIL-C) is recommended and validated for ≤ 0.1 ppb THC retention.
