Gas Chromatograph GC-2021plus by Huazhun Chromatography
| Brand | Huazhun Chromatography |
|---|---|
| Model | GC-2021plus |
| Origin | Jiangxi, China |
| Instrument Type | Laboratory Gas Chromatograph |
| Application Scope | General-purpose |
| Oven Temperature Range | 5 °C to 450 °C |
| Maximum Ramp Rate | 250 °C/min |
| Cooling Rate | ≤8 min (from 350 °C to 50 °C at 25 °C ambient) |
| Carrier Gas Flow Control Range | 0–200 mL/min (N₂), 0–1250 mL/min (H₂ or He) |
| Carrier Gas Pressure Control Range | 0–1035 kPa (0–150 psi) |
| Injector Maximum Operating Temperature | 420 °C |
Overview
The Huazhun Chromatography GC-2021plus is a high-performance, network-enabled laboratory gas chromatograph engineered for precision separation and quantitative analysis of volatile and semi-volatile organic compounds. Based on the fundamental principle of differential partitioning between a mobile phase (inert carrier gas) and a stationary phase (capillary or packed column), the system delivers reproducible retention time alignment, robust peak resolution, and stable baseline performance across extended run sequences. Designed for routine QC/QA, environmental monitoring, petrochemical screening, and pharmaceutical impurity profiling, the GC-2021plus integrates thermally optimized oven architecture with real-time pressure and flow digital control—ensuring compliance with method transfer requirements under ISO 17025-accredited laboratories.
Key Features
- Thermally insulated column oven with rapid heating (up to 250 °C/min) and active cooling (≤8 min cooldown from 350 °C to 50 °C), enabling high-throughput method development and multi-method scheduling.
- Dual independent carrier gas control modules supporting N₂, H₂, and He—with full digital pressure and flow regulation (0–1035 kPa; 0–1250 mL/min) and real-time feedback compensation.
- High-temperature split/splitless injector (up to 420 °C) with electronic pneumatic control (EPC), ensuring precise injection volume repeatability and minimal thermal degradation of labile analytes.
- Modular detector compatibility—including FID, TCD, ECD, and optional PID—configured via standardized electrical and gas interfaces per IEC 61000-6-3 EMC guidelines.
- Integrated safety interlocks: flame-out detection for FID, overtemperature cutoff, and carrier gas failure shutdown—all logged with timestamped event records.
Sample Compatibility & Compliance
The GC-2021plus accommodates liquid, gaseous, and headspace-derived samples via standard 10–100 µL syringe injection, autosampler integration (e.g., Huazhun AS-2021), or direct gas loop injection. It supports ASTM D3606 (gasoline aromatics), USP <621> (chromatographic separations), and ISO 10301 (volatile organic compound analysis in air). All hardware and firmware comply with CE marking directives (2014/30/EU EMC, 2014/35/EU LVD), while the embedded control architecture satisfies FDA 21 CFR Part 11 requirements—including electronic signatures, audit trail generation, role-based access control (administrator/operator/maintainer), and immutable data archiving.
Software & Data Management
The proprietary Huazhun Chromatography Workstation (v4.2+) operates natively on Windows 7/10/11 (64-bit) and reads/writes AIA/CDF-compliant chromatographic data files. It implements full bidirectional Ethernet communication (TCP/IP stack with MODBUS/TCP gateway support), enabling seamless integration into plant-level DCS or LIMS environments. Key software capabilities include: automated sequence execution with pre-run instrument conditioning (oven ramp, detector ignition, bridge current activation); scheduled calibration routines (zero/span/linearity verification); batch processing of integration parameters, report generation (PDF/CSV/XLSX), and comparative spectral overlay. System suitability testing (SST), IQ/OQ validation templates, and electronic record integrity checks are embedded within the software suite—fully traceable for GLP/GMP audits.
Applications
This instrument is routinely deployed in environmental labs for EPA Method 8260C (VOCs in water/soil), in food safety testing for residual solvent analysis per ICH Q3C, and in polymer manufacturing for monomer purity assessment (ASTM D5232). Its wide temperature range and flexible carrier gas options make it suitable for both high-resolution polar compound separation (using PEG/WAX columns) and fast hydrocarbon group-type analysis (via aluminum oxide/PLOT columns). The workstation’s “Online Monitoring” mode allows live chromatogram streaming and real-time peak tracking—critical for continuous process analytical technology (PAT) deployment in API synthesis or fermentation monitoring.
FAQ
Does the GC-2021plus support remote operation and unattended overnight runs?
Yes—via secure Ethernet connection, users can initiate sequences, monitor status, and retrieve raw data remotely. Scheduled auto-start, auto-calibration, and fault-recovery protocols ensure reliable 24/7 operation.
Is the software validated for regulated pharmaceutical environments?
Yes—the workstation includes built-in 21 CFR Part 11 compliance tools: user authentication, electronic signatures, full audit trail (with operator ID, timestamp, and action type), and electronic record immutability.
Can the system interface with third-party LIMS or MES platforms?
Yes—through its native MODBUS/TCP interface and configurable CSV/XML export schema, the GC-2021plus supports bidirectional data exchange with major LIMS vendors (e.g., LabWare, Thermo Fisher SampleManager) and industrial automation systems.
What maintenance intervals are recommended for optimal performance?
Column reconditioning every 200 injections; injector liner replacement every 500 injections; detector cleaning every 1000 hours of operation; annual full-system calibration and leak-check verification per ISO/IEC 17025 Clause 6.4.
Is technical documentation available in English for international users?
Yes—comprehensive English-language user manuals, installation qualification (IQ) checklists, operational qualification (OQ) protocols, and software validation guides are provided with each system shipment.
