Agilent GC6890 Used Gas Chromatograph
| Brand | Agilent Technologies |
|---|---|
| Origin | USA |
| Model | GC6890 |
| Condition | Refurbished & Fully Qualified |
| Compliance | Meets ASTM D3606, ISO 17025-relevant operational standards |
| Detector Options Supported | FID, TCD, ECD, NPD, FPD |
| Column Compatibility | Up to 0.53 mm ID capillary or packed columns |
| Oven Temperature Range | 4°C to 450°C (programmable) |
| Injector Types | Split/Splitless, Cool-on-Column, PTV |
| Data System | Compatible with Agilent ChemStation (Rev. A.10.x or later) |
| Regulatory Readiness | Audit-trail capable |
Overview
The Agilent GC6890 is a high-performance, modular gas chromatograph originally engineered for robust routine analysis in regulated and research laboratories. As a second-generation platform succeeding the HP 5890, the GC6890 employs precision pneumatic control, electronically actuated valves, and temperature-stabilized oven architecture to deliver consistent retention time reproducibility (<0.008 min RSD) and baseline stability under extended operation. Its core measurement principle relies on differential partitioning of volatile and semi-volatile analytes between a mobile phase (carrier gas—typically helium, hydrogen, or nitrogen) and a stationary phase coated inside fused-silica capillary columns. Separated compounds elute at characteristic retention times and are quantified via signal response from compatible detectors—including flame ionization (FID), thermal conductivity (TCD), electron capture (ECD), nitrogen-phosphorus (NPD), and flame photometric (FPD) detectors. This system was widely deployed in pharmaceutical QC, environmental monitoring (e.g., EPA Method 8260/8270), petrochemical profiling, and food safety testing prior to its phased replacement by the 7890 series.
Key Features
- Temperature-controlled oven with ramp rates up to 120°C/min and precise isothermal hold capability (±0.01°C stability)
- Dual independent inlet modules supporting simultaneous split/splitless injection and cool-on-column introduction
- Electronic pressure control (EPC) for carrier gas, makeup gas, and detector gases—enabling method transferability and retention time locking (RTL)
- Integrated auto-sampler compatibility (e.g., Agilent G1513A, G2614A) with vial capacity up to 100 positions
- Modular detector bays allowing field-upgradable detector configurations without system downtime
- Self-diagnostic firmware with real-time status monitoring of column flow, oven temperature, and detector voltage
Sample Compatibility & Compliance
The GC6890 accommodates a broad range of sample matrices following appropriate preparation—liquid extracts (e.g., solvent-based EPA extractions), headspace vapors, thermal desorption tubes, and direct gas injections. It supports capillary columns from 10 m to 105 m length and internal diameters from 0.10 mm to 0.53 mm, as well as packed columns for legacy method compliance. The instrument meets functional equivalence requirements for methods referenced in USP <621>, ASTM D3606 (benzene/toluene in gasoline), EPA Methods 8021B (organochlorine pesticides), and ISO 11843-3 (detection limit validation). When operated with Agilent ChemStation under documented SOPs and periodic performance qualification (PQ), it satisfies GLP and GMP data integrity expectations, including audit trail generation and electronic signature support per FDA 21 CFR Part 11—provided the software environment is validated and access controls implemented.
Software & Data Management
The GC6890 operates natively with Agilent ChemStation (versions A.03.04 through A.10.02), offering full method development, sequence execution, peak integration, calibration curve generation, and report export (PDF, CSV, XML). Raw data files (.D format) retain complete acquisition metadata—including instrument configuration, event logs, and detector parameters—for traceability. ChemStation supports secure user role management (administrator, analyst, reviewer), electronic signatures, and configurable audit trail settings compliant with ALCOA+ principles. Data backup, archiving, and networked deployment are supported via LAN-connected workstations. Third-party LIMS integration is achievable using OpenLab CDS drivers or custom ODBC interfaces.
Applications
- Residual solvent analysis in APIs and excipients (ICH Q3C)
- VOC and SVOC profiling in soil, water, and air samples per EPA SW-846
- Fatty acid methyl ester (FAME) composition in biodiesel (ASTM D6751)
- Pesticide residue screening in fruits, vegetables, and grains (AOAC 2007.01)
- Hydrocarbon group-type analysis (HTA) in lubricants and fuels
- Essential oil fingerprinting and adulteration detection in natural products
FAQ
Is this GC6890 unit fully refurbished and performance-qualified?
Yes—each unit undergoes comprehensive hardware inspection, leak testing, oven/detector calibration verification, and multi-point retention time repeatability assessment against NIST-traceable standards.
Does it include a working detector?
Detector configuration varies by unit; FID is standard unless otherwise specified. All detectors are functionally tested and accompanied by baseline noise and sensitivity verification reports.
Can it be integrated into an existing Agilent ChemStation network?
Yes—units ship with licensed ChemStation software (perpetual node-locked license) and are preconfigured for seamless integration with existing LabData or OpenLab environments.
What documentation is provided upon delivery?
Each system includes a Certificate of Qualification (CoQ), preventive maintenance log, detector verification report, and full set of original Agilent technical manuals (English).
Is on-site installation and IQ/OQ support available?
Yes—qualified field service engineers provide installation, operational verification, and optional IQ/OQ protocol execution aligned with ISO/IEC 17025 or GMP Annex 15 requirements.
