PEAK Precision Nitrogen Standard Nitrogen Generator
| Brand | PEAK |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Import Status | Imported |
| Model | Precision Nitrogen Standard |
| Nitrogen Generation Principle | Pressure Swing Adsorption (PSA) using Carbon Molecular Sieve (CMS) |
| Output Flow Rates | 250 cc/min, 600 cc/min, 1000 cc/min |
| Output Pressure | 80 psi (5.5 bar) |
| Nitrogen Purity | 99.9995% (5.5 N₂) |
| Hydrocarbon Residual | <0.05 ppm (as CH₄) |
| Startup Time | <5 minutes |
| Maintenance Interval | Annual filter cartridge replacement |
| Compliance | Designed to meet ISO 8573-1 Class 1:2:1 for compressed air feed and compatible with GLP/GMP laboratory environments |
Overview
The PEAK Precision Nitrogen Standard is a compact, benchtop nitrogen generator engineered for reliable, on-demand supply of high-purity nitrogen gas (99.9995%) in analytical laboratories. It employs pressure swing adsorption (PSA) technology with regenerative carbon molecular sieve (CMS) columns to separate nitrogen from compressed ambient air—removing oxygen, water vapor, and CO₂ through selective adsorption under elevated pressure. A downstream catalytic purifier eliminates residual hydrocarbons (e.g., methane), achieving sub-ppm levels (<0.05 ppm), making the output suitable as carrier gas for GC, GC-MS, and as auxiliary gas for LC-MS, ICP-MS, and elemental analyzers. Unlike liquid nitrogen dewars or high-pressure cylinders, this system eliminates supply chain dependency, safety hazards, and logistical overhead—delivering consistent, traceable, and auditable gas quality aligned with ISO/IEC 17025 and FDA 21 CFR Part 11 data integrity expectations when integrated with compliant software.
Key Features
- Three scalable flow configurations: 250 cc/min, 600 cc/min, and 1000 cc/min—each maintaining stable 80 psi (5.5 bar) output pressure without external regulators.
- Dual-stage purification architecture: CMS-based O₂/H₂O removal followed by a low-temperature catalytic converter for hydrocarbon abatement (CH₄-equivalent).
- Zero-balance design: No nitrogen storage tank required; gas is generated only upon demand, minimizing hold-up volume and ensuring rapid response to instrument gas demand fluctuations.
- Compact footprint with stackable chassis—optimized for space-constrained labs and modular lab furniture integration.
- Integrated air dryer and particulate filtration (coalescing + activated carbon) ensure inlet air meets ISO 8573-1 Class 2:2:1 specifications prior to PSA processing.
- Intelligent self-diagnostics with LED status indicators and audible alerts for filter saturation, pressure anomalies, or CMS bed exhaustion.
Sample Compatibility & Compliance
The Precision Nitrogen Standard delivers nitrogen meeting ASTM D6642–22 (Standard Specification for Nitrogen for Use in Gas Chromatography) and USP requirements for instrumental gas purity. Its 99.9995% N₂ output supports critical applications including electron capture detection (ECD), thermal conductivity detection (TCD), and nitrogen laser excitation sources. The unit is CE-marked and conforms to IEC 61010-1 for laboratory electrical safety. When deployed in regulated environments (e.g., pharmaceutical QC labs), it supports audit-ready operation through optional peakLOG™ software integration, enabling electronic logbooks, calibration traceability, and 21 CFR Part 11-compliant user access control and audit trails.
Software & Data Management
While the Precision Nitrogen Standard operates autonomously without mandatory software, optional peakLOG™ firmware enables remote monitoring via Ethernet or USB. This platform records real-time parameters—including inlet pressure, CMS cycle timing, outlet purity estimates (via internal O₂ sensor feedback), and maintenance countdown timers. All logs are timestamped, digitally signed, and exportable in CSV or PDF for inclusion in laboratory quality management systems (QMS). Firmware updates are delivered via secure HTTPS and validated checksums to ensure integrity—fully supporting ISO/IEC 17025 clause 5.9 (Control of Records) and ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate).
Applications
- Gas chromatography: Carrier gas for capillary columns (including polar and low-bleed phases), make-up gas for FID/ECD, and purge gas for headspace samplers.
- Mass spectrometry: Collision gas for QqQ and Q-TOF instruments; nebulizer/desolvation gas for ESI and APCI sources.
- Elemental analysis: Combustion gas for TOC and CHNS/O analyzers; purge gas for mercury analyzers (EPA Method 1631).
- Controlled atmosphere chambers: Inert blanketing during sample preparation, lyophilization, or catalyst handling.
- LC-MS solvent degassing: Integrated inline nitrogen sparging to reduce dissolved O₂ and prevent oxidation artifacts.
FAQ
What compressed air quality is required for optimal operation?
Inlet air must be oil-free, dried to ≤−40°C dew point, and filtered to ISO 8573-1 Class 2:2:1 (≤0.1 µm particles, ≤0.01 mg/m³ oil aerosol). A dedicated PEAK AirGenius™ or equivalent zero-oil scroll compressor with coalescing and desiccant drying is recommended.
Can the unit be used with multiple instruments simultaneously?
Yes—provided total connected demand does not exceed the selected model’s rated flow at 80 psi. For multi-instrument setups, a manifold with individual pressure regulators and flow meters is advised to maintain stable backpressure and avoid cross-contamination.
How often must consumables be replaced?
Primary filters require annual replacement; CMS column lifetime exceeds 20,000 hours under nominal load. Replacement intervals are tracked automatically and signaled via front-panel alerts.
Is the nitrogen output compatible with Agilent, Thermo Fisher, and Waters instrumentation?
Yes—the Precision Nitrogen Standard is validated for seamless integration with all major OEM GC, GC-MS, and LC-MS platforms. PEAK maintains formal interoperability agreements with Agilent, Thermo Fisher Scientific, Waters, Shimadzu, Bruker, and Sciex.
Does the system support GMP/GLP documentation requirements?
When paired with peakLOG™ and configured with user authentication, electronic signatures, and audit trail logging, the system satisfies core GMP/GLP documentation criteria per EU Annex 11 and FDA guidance on computerized systems.
