Agilent 6890 Plus Gas Chromatograph with HP 7694A Headspace Autosampler
| Brand | Agilent Technologies |
|---|---|
| Origin | Canada |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported Instrument |
| Model | 6890 GC |
| Price Range | USD $13,500 – $40,500 (FOB) |
| Product Category | Chromatography System |
| Operational Age | 5–7 years |
| Warranty | 6 months limited hardware warranty |
Overview
The Agilent 6890 Plus Gas Chromatograph integrated with the HP 7694A Headspace Autosampler is a robust, field-proven analytical platform engineered for high-reproducibility volatile organic compound (VOC) analysis in regulated and research laboratory environments. Based on classic packed and capillary gas chromatography principles—employing temperature-programmed separation, carrier gas flow control, and flame ionization or thermal conductivity detection—the system delivers precise retention time stability, peak resolution, and quantitative accuracy across diverse sample matrices. Its dual-channel architecture supports simultaneous operation of two independent inlet/detector configurations, enabling method parallelization or internal standard validation workflows without hardware reconfiguration. Designed to meet long-term operational demands, this refurbished unit has undergone full functional validation—including leak testing, temperature ramp calibration, EPC linearity verification, and autosampler precision assessment—per SpectraLab Scientific’s ISO/IEC 17025-aligned refurbishment protocol.
Key Features
- Dual independent inlet/detector channels with fully electronic pressure control (EPC) for all gas streams—optimized for split/splitless, cool-on-column, and programmed temperature vaporizing (PTV) inlets
- Capillary column flow control modes: constant pressure, constant flow, pressure programming (3-step), and flow programming (3-step); real-time calculation of average linear velocity
- Atmospheric pressure and ambient temperature compensation as standard—ensuring retention time reproducibility across seasonal or facility-wide environmental fluctuations
- Integrated front-panel and network-based method programming with clock-time scheduling for unattended startup, shutdown, and method execution
- Run-time deviation logging for all critical parameters (oven ramp rate, inlet pressure, detector gain, valve timing), generating audit-ready traceability per GLP/GMP requirements
- HP 7694A Headspace Autosampler featuring inert sample path (siliconized glass vials, deactivated transfer lines), programmable equilibration heating, overlapping sample processing, and up to 10 headspace extractions per vial
Sample Compatibility & Compliance
The system accommodates aqueous, solvent-based, polymer, pharmaceutical, and environmental samples requiring VOC or residual solvent analysis. The HP 7694A provides automated, contamination-minimized headspace introduction—eliminating manual syringe injection variability and adsorptive losses common in direct liquid injection. It complies with ASTM D3699 (gasoline aromatics), USP (residual solvents), and EPA Method 502.2 (halogenated organics in drinking water). All EPC modules are traceable to NIST-certified pressure standards; temperature sensors are calibrated against ITS-90 reference points. The refurbished unit meets Agilent’s original factory specifications for baseline noise (<0.5 pA), retention time repeatability (RSD <0.05%), and peak area precision (RSD <1.5% for 10 injections).
Software & Data Management
Control and data acquisition are compatible with Agilent ChemStation Rev. A.03.04 or later, supporting 21 CFR Part 11-compliant user access controls, electronic signatures, and audit trail generation. Raw data files (.D format) retain full instrument parameter metadata, including EPC setpoints, oven profile timestamps, and autosampler event logs. Open communication protocols (LAN-based Agilent GPIB emulation, RS-232, and Ethernet TCP/IP) enable integration into LIMS environments and third-party data review platforms. SpectraLab Scientific provides pre-installation software verification and configuration documentation aligned with laboratory validation SOPs.
Applications
- Residual solvent quantification in APIs and excipients per ICH Q3C guidelines
- Volatile impurity profiling in polymers, adhesives, and packaging materials
- BTEX and chlorinated hydrocarbon analysis in soil and groundwater extracts
- Flavor and fragrance compound screening in food and beverage matrices
- Quality control of industrial solvents and petrochemical feedstocks
- Method development support for regulatory submissions requiring documented instrument performance history
FAQ
Is this instrument eligible for IQ/OQ/PQ documentation support?
Yes—SpectraLab Scientific provides customizable Installation Qualification (IQ) and Operational Qualification (OQ) templates aligned with ISO/IEC 17025 and GxP expectations. Protocol execution and witnessed testing can be arranged onsite or remotely.
What detector configurations were verified during refurbishment?
Standard FID and TCD modules were tested; optional ECD, NPD, or mass selective detectors may be added post-purchase with compatibility verification.
Does the 6-month warranty cover EPC modules and autosampler robotics?
Yes—the warranty includes all factory-installed electronic control boards, pneumatic actuators, stepper motor assemblies, and temperature sensor circuits.
Can this system interface with modern LIMS via ASTM E1384 or HL7?
While native HL7 support is not embedded, ChemStation’s ASCII export and database connectivity (ODBC/JDBC) allow structured data mapping to LIMS via middleware or custom scripting.
Are consumables and spare parts still available from Agilent?
All major components—including 7694A vial racks, septa, liner O-rings, and GC column ferrules—remain in active production or are available through Agilent’s legacy parts program (P/N cross-reference provided upon request).
