SCIWAY NG1000 Membrane-Based Nitrogen Generator
| Brand | SCIWAY |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Model | NG1000 |
| Nitrogen Generation Principle | Hollow-Fiber Membrane Separation |
| Output Flow Rate | 35 L/min at 110 psi |
| Output Pressure Range | 0–116 psi |
| Nitrogen Purity | 99.9% (v/v) |
| Dew Point | −20 °C |
| Filtration Grade | 0.01 µm particulate filter + high-capacity activated carbon adsorption |
| Compliance | Designed for LC-MS instrument gas supply per Agilent, Waters, Thermo Fisher, and Shimadzu OEM specifications |
Overview
The SCIWAY NG1000 is a compact, membrane-based nitrogen generator engineered specifically to meet the continuous, high-purity gas demands of liquid chromatography–mass spectrometry (LC-MS) systems. It employs hollow-fiber polymeric membrane technology to separate nitrogen from compressed ambient air—retaining nitrogen while selectively permeating oxygen, water vapor, CO₂, and trace hydrocarbons. This physical separation process eliminates reliance on cryogenic liquid nitrogen or high-pressure nitrogen cylinders, delivering a stable, on-demand source of 99.9% pure nitrogen with a certified dew point of −20 °C. The system operates without external power input for gas generation (requiring only compressed air feed), making it intrinsically energy-efficient and suitable for integration into regulated analytical laboratories where utility redundancy and operational continuity are critical. Its design prioritizes long-term stability, low thermal drift, and minimal maintenance intervention—attributes validated through multi-year field deployment across pharmaceutical QC, clinical research, and academic proteomics labs.
Key Features
- Hollow-fiber membrane module sourced from Tier-1 Japanese and German suppliers, ensuring consistent separation efficiency and service life exceeding 15,000 operating hours
- Integrated three-stage purification: coalescing pre-filter (0.01 µm), high-surface-area activated carbon bed, and final particulate polishing filter
- No moving parts in the gas separation path—eliminates mechanical wear, vibration, and acoustic emissions (<45 dBA at 1 m)
- Modular chassis with industrial-grade casters for repositioning within shared lab spaces without requiring tool-assisted disassembly
- Pressure-regulated output (0–116 psi) with built-in overpressure relief and flow-stabilized delivery compatible with ESI, APCI, and HESI ion sources
- Self-contained operation: requires only clean, oil-free compressed air (minimum 120 psi inlet pressure, ISO 8573-1 Class 2:2:2 compliant)
Sample Compatibility & Compliance
The NG1000 is validated for direct integration with LC-MS platforms from Agilent (6400/6500 series), Waters (Xevo TQ-S, Vion IMS QTof), Thermo Fisher (Orbitrap Exploris, TSQ Altis), and Shimadzu (Nexera UC, LCMS-8060). All wetted materials comply with USP Class VI biocompatibility standards; no phthalates, silicone oils, or halogenated organics are introduced during gas production. The system meets ISO 8573-1:2010 Class 2 air quality requirements for particle, water, and oil content in the final nitrogen stream. While not a medical device, its architecture supports GLP/GMP-aligned documentation packages—including calibration logs, preventive maintenance records, and change control history—for audit readiness under FDA 21 CFR Part 11 and EU Annex 11 frameworks.
Software & Data Management
The NG1000 operates as a standalone hardware unit with no embedded firmware or digital interface. All operational parameters—including inlet pressure, outlet flow, and cumulative runtime—are monitored via analog gauges and mechanical flowmeters calibrated per ISO/IEC 17025 traceable procedures. For laboratories requiring electronic data capture, optional analog-to-digital signal converters (4–20 mA output) can be integrated into existing BMS or LIMS environments. Maintenance scheduling follows time-based protocols aligned with ISO 13485 preventive maintenance guidelines, with filter replacement intervals documented in accordance with laboratory SOPs for instrument qualification (IQ/OQ/PQ).
Applications
- LC-MS mobile phase nebulization and desolvation gas supply in small-molecule quantitation (e.g., pharmacokinetic studies)
- High-throughput proteomics workflows requiring uninterrupted nitrogen for nanoESI sources
- Residual solvent analysis by GC-MS where nitrogen serves as carrier and purge gas
- Stability-indicating methods under ICH Q5C requiring inert atmosphere for sample preparation
- Reference standard storage cabinets and glove boxes requiring continuous low-dew-point nitrogen blanketing
FAQ
Does the NG1000 require electrical power to generate nitrogen?
No—the core membrane separation process is passive and driven solely by compressed air pressure. Only optional accessories (e.g., digital pressure transducers or remote alarm modules) draw power.
What compressed air quality is required for optimal performance?
Oil-free, desiccated air meeting ISO 8573-1 Class 2:2:2 (≤0.1 µm particles, ≤−40 °C dew point, ≤0.01 mg/m³ total oil content) is mandatory to prevent membrane fouling and ensure rated purity.
How often must filters be replaced?
The 0.01 µm coalescing filter and activated carbon cartridge are rated for 3,000–5,000 operating hours or 12–18 months—whichever occurs first—under typical LC-MS duty cycles.
Can output pressure be adjusted in real time during LC-MS operation?
Yes—integrated precision pressure regulators allow fine-tuning between 0–116 psi without interrupting gas flow or compromising purity.
Is the NG1000 suitable for use in cleanroom environments (ISO Class 5 or better)?
While the unit itself is not ISO 14644-certified, its zero-emission, oil-free, and silent operation enables placement outside the cleanroom with nitrogen piped in via electropolished stainless-steel tubing—common practice in cGMP manufacturing suites.
