HUIFEN HN-200DS GC for National Vocational Skills Competition in Chemical Laboratory Technology
| Brand | HUIFEN |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic |
| Model | HN-2000DS |
| Instrument Type | Benchtop Gas Chromatograph |
| Application Scope | General-purpose |
| Oven Temperature Range | Ambient + 3°C to 450°C |
| Ramp Rate | 0.1–40°C/min |
| Cool-down Time | ~8 min (450°C → 50°C) |
| Carrier Gas Flow Range & Control | 0–1200 mL/min (EPC) |
| Carrier Gas Pressure Range & Control | 0–970 kPa (EPC) |
| Injector Max Temp | 450°C |
| Injector Pressure Setpoint Range | 0–970 kPa |
| Injector Total Flow Setpoint Range | 0–1200 mL/min |
Overview
The HUIFEN HN-200DS is a benchtop gas chromatograph engineered specifically for standardized performance evaluation in national vocational education assessments—most notably the National Vocational Skills Competition in Chemical Laboratory Technology. Built upon a robust dual-channel architecture with full electronic pressure and flow control (EPC), it delivers precise, reproducible retention time stability and peak area repeatability under rigorous training and competitive conditions. Its core separation mechanism relies on partitioning of volatile and semi-volatile analytes between a gaseous mobile phase (helium, hydrogen, or nitrogen) and a thermally stable stationary phase coated inside fused-silica capillary columns. The system supports both split and splitless injection modes, with temperature-programmed oven control enabling resolution of complex mixtures across wide boiling point ranges—from low-molecular-weight gases to high-boiling polar compounds.
Key Features
- Full EPC-controlled pneumatic system with 0.01 psi pressure resolution, ensuring consistent carrier gas linear velocity and optimized method transferability.
- 7-inch industrial-grade color TFT-LCD touchscreen interface with dual-language OS (English/Chinese), supporting intuitive instrument configuration, real-time parameter monitoring, and diagnostic feedback.
- Modular detector bay compatible with FID, TCD, ECD, FPD, and NPD—enabling flexible method development for hydrocarbons, halogenated organics, sulfur compounds, nitrogen-containing species, and trace metals analysis.
- Integrated Ethernet (10/100M auto-negotiating) port with embedded TCP/IP stack for remote operation, firmware updates, and networked data acquisition in multi-instrument teaching labs.
- Auto-start scheduling and event-triggered run sequences support unattended operation during extended training sessions or competition rounds.
- Injector and detector zones independently heated up to 450°C, accommodating high-temperature applications such as polymer additive analysis and pesticide residue profiling.
Sample Compatibility & Compliance
The HN-200DS accommodates liquid, gaseous, and headspace samples via manual syringe injection or optional autosampler integration (e.g., 108-position liquid autosampler with programmable vial agitation and needle wash). It meets essential requirements outlined in GB/T 30431–2023 (Chinese National Standard for Gas Chromatographs) and aligns with ISO/IEC 17025:2017 clause 6.4.3 regarding equipment verification, calibration traceability, and environmental condition monitoring. All thermal and flow parameters are logged with timestamps and operator IDs, satisfying GLP documentation prerequisites for educational validation studies.
Software & Data Management
IBrainChrom workstation software provides comprehensive GC data acquisition, processing, reporting, and instrument control. It supports concurrent operation of up to 253 chromatographs on a single network segment, with centralized method library management and version-controlled sequence templates. Audit trail functionality records all user actions—including method edits, integration parameter changes, and report exports—with immutable timestamps and digital signatures compliant with FDA 21 CFR Part 11 Annex 11 principles. Modbus RTU protocol integration enables seamless interfacing with DCS/SCADA systems used in industrial process laboratories and pilot-scale facilities.
Applications
This instrument serves pedagogical and applied analytical needs across multiple domains: hydrocarbon fingerprinting in petroleum fractions (ASTM D5292); residual solvent quantification in pharmaceutical intermediates (ICH Q3C); pesticide multiresidue screening in food matrices (GB 23200.113); VOC profiling in indoor air and wastewater headspace (HJ 644–2013); and quality control of synthetic organic reagents in university teaching labs. Its design emphasizes method ruggedness, inter-operator consistency, and rapid recovery from column contamination—critical attributes for timed competition environments and undergraduate laboratory instruction.
FAQ
Is the HN-200DS validated for GMP-regulated environments?
Yes—when deployed with IBrainChrom’s audit-trail-enabled workflow and properly documented IQ/OQ protocols, it satisfies foundational requirements for analytical instrument qualification in GLP/GMP-aligned academic and contract research settings.
Can the system be upgraded to support mass spectrometric detection?
No—the HN-200DS is a dedicated GC platform without MS interface hardware or vacuum system provisions. For hyphenated techniques, users should consider HUIFEN’s separate GC-MS product line.
What level of technical support is available outside China?
HUIFEN partners with regional distributors who provide localized installation assistance, preventive maintenance contracts, and certified technician training programs aligned with ISO/IEC 17020 standards.
Does the instrument include factory calibration certificates?
Each unit ships with a traceable temperature and flow calibration report issued by the manufacturer’s accredited metrology lab, referencing NIST-traceable reference standards.
How is data integrity ensured during network transmission?
All data packets transmitted over Ethernet employ TLS 1.2 encryption; local storage uses write-once-read-many (WORM) file system options to prevent post-acquisition modification of raw chromatograms.
