HuaiAi GC-9560-N2 Food-Grade Nitrogen Purity Analyzer Gas Chromatograph
| Brand | HuaiAi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | GC-9560-N2 |
| Instrument Type | Laboratory Gas Chromatograph |
| Application Field | Food Industry–Specific |
| Temperature Control Range | Ambient + 400 °C |
| Oven Ramp Rate | 0.1–40 °C/min |
| Oven Cool-Down Rate | 6 °C/min |
| Carrier Gas Flow Range & Control | 0–100 mL/min |
| Carrier Gas Pressure Range & Control | 0–970 kPa |
| Injector Maximum Operating Temperature | 400 °C |
| Injector Pressure Setting Range | 0–970 kPa |
| Injector Total Flow Setting Range | 0–100 mL/min |
Overview
The HuaiAi GC-9560-N2 Food-Grade Nitrogen Purity Analyzer is a dedicated laboratory gas chromatograph engineered for precise quantification of trace impurities—specifically oxygen (O₂), carbon monoxide (CO), and carbon dioxide (CO₂)—in high-purity nitrogen used as a food additive. Designed in strict alignment with GB 29202–2012, the mandatory Chinese National Food Safety Standard “Food Additive – Nitrogen”, this instrument implements a robust dual-detector configuration (typically TCD and/or methanizer-FID) optimized for sub-ppm detection sensitivity and high reproducibility across routine QC workflows. Its core analytical principle relies on packed or micro-packed column separation under controlled carrier gas (N₂ or He) flow, followed by thermal conductivity or flame ionization detection calibrated against certified standard gas mixtures. The system is intended for use in food manufacturing facilities, third-party testing laboratories, and nitrogen production sites requiring documented compliance with regulatory purity thresholds: O₂ ≤ 0.01% (v/v), CO ≤ 0.1 ppm (v/v), and CO₂ ≤ 0.1 ppm (v/v).
Key Features
- Regulatory-Driven Configuration: Pre-configured column set, detector selection, and method parameters validated per GB 29202–2012 requirements for O₂, CO, and CO₂ analysis in food-grade nitrogen.
- High-Temperature Stability: Oven temperature control from ambient to 400 °C with ramp rates adjustable between 0.1 and 40 °C/min, enabling sharp peak resolution for low-boiling impurities and robust method transferability.
- Precision Gas Handling System: Independent digital pressure and flow controllers for carrier, makeup, and fuel gases; injector pressure range 0–970 kPa and total flow 0–100 mL/min ensure consistent retention time stability and retention index reproducibility.
- Thermally Robust Injector: Split/splitless injector rated to 400 °C, compatible with both liquid and gas standards; supports automated calibration sequences using multi-level gas standards.
- Integrated Cooling Architecture: Active oven cooling at up to 6 °C/min reduces cycle time between consecutive analyses—critical for high-throughput batch release testing of nitrogen cylinders or pipeline supply.
- Modular Detector Support: Configurable with TCD for universal detection of permanent gases and optional methanizer–FID for enhanced CO/CO₂ sensitivity, meeting detection limit specifications without external enrichment.
Sample Compatibility & Compliance
The GC-9560-N2 accepts gaseous samples introduced via calibrated gas-tight syringes, pressurized sample loops (0.25–1.0 mL), or direct line injection from nitrogen supply manifolds. It is validated for use with Grade 5.0 (99.999%) and higher nitrogen streams produced via cryogenic distillation, pressure swing adsorption (PSA), membrane separation, or small-scale on-site generators. All operational protocols, calibration records, and system suitability tests align with Good Laboratory Practice (GLP) principles. While GB 29202–2012 is jurisdiction-specific, the instrument’s performance characteristics—including detection limits, precision ( 0.999 over 0.05–10 ppm CO/CO₂ range)—are commensurate with internationally recognized benchmarks such as ISO 6468:1997 (gas analysis by GC) and ASTM D1945 (analysis of natural gas by GC). Audit-ready electronic logs support internal quality audits and regulatory inspections.
Software & Data Management
The system operates with HuaiAi ChromaVision™ GC Control Software (v3.2+), a Windows-based platform compliant with FDA 21 CFR Part 11 requirements for electronic records and signatures. Key capabilities include user role-based access control, full audit trail generation (including method changes, integration events, and calibration updates), automatic report generation in PDF/CSV formats, and raw data archiving with SHA-256 hash verification. Chromatograms are processed using dynamic baseline correction, peak deconvolution for co-eluting species, and retention time locking for long-term method robustness. Data export supports LIMS integration via ASTM E1394 or HL7-compliant interfaces. All software modules undergo annual validation per IQ/OQ/PQ protocols supplied with the instrument.
Applications
- Release testing of food-grade nitrogen cylinders prior to distribution to beverage carbonation, snack packaging, and modified atmosphere packaging (MAP) lines.
- In-process monitoring of PSA and membrane nitrogen generators in dairy processing plants and ready-to-eat meal facilities.
- Verification of nitrogen purity during commissioning of new inerting systems in edible oil storage tanks or pharmaceutical excipient handling environments.
- Root cause investigation of off-flavor development in packaged foods linked to residual O₂ or oxidation catalysts (e.g., CO).
- Supporting HACCP plans by providing documented evidence of gas purity controls at critical control points (CCPs) in food safety management systems.
FAQ
Does the GC-9560-N2 comply with international food safety standards beyond GB 29202–2012?
Yes—the system’s detection capability, calibration traceability to NIST-certified standards, and data integrity architecture meet foundational expectations of ISO 22000, BRCGS Food Safety Issue 9, and SQF Edition 9 for supplier verification of food-grade gases.
Can it analyze other impurities such as moisture or hydrocarbons?
Not natively; the standard configuration targets O₂, CO, and CO₂ per GB 29202–2012. Optional column/detector upgrades (e.g., PLOT Q-column + FID) enable hydrocarbon profiling, but require method revalidation and are not covered under the base compliance scope.
Is remote diagnostics and firmware update supported?
Yes—ChromaVision™ includes secure HTTPS-based remote access for technical support, with firmware updates delivered via signed package files and version-controlled release notes.
What consumables require regular replacement?
Gas filters (oxygen/moisture traps), septa, liner inserts, and detector filaments (for TCD) are scheduled maintenance items; typical service intervals range from 3–6 months depending on sample load and gas quality.
Is training provided for method setup and regulatory reporting?
HuaiAi offers on-site or virtual installation qualification (IQ) and operational qualification (OQ) training, including hands-on GB 29202–2012 method implementation, report generation, and audit preparation workshops.
