Agilent 5890 II Gas Chromatograph

Overview

The Agilent 5890 II Gas Chromatograph is a robust, benchtop analytical platform engineered for precision separation and quantitative detection of volatile and semi-volatile organic compounds. Based on classic packed- and capillary-column gas chromatography principles, this instrument employs temperature-programmed elution, pressure-controlled carrier gas flow, and dual-detector architecture to deliver high reproducibility in routine QC, environmental monitoring, petrochemical analysis, and academic research labs. Though originally introduced in the early 1990s, the 5890 II remains operationally relevant due to its modular design, mechanical stability, and compatibility with modern data systems via HP-IB (IEEE-488) interface. All units supplied by SpectraLab Scientific undergo full functional refurbishment—including column oven calibration, detector baseline verification, leak testing, and firmware validation—ensuring compliance with ASTM D3606, ISO 10156, and USP method suitability expectations for legacy GC systems.

Key Features

• Triple-zone programmable column oven: operating range from 4°C above ambient to 450°C, with setpoint resolution of 0.1°C and ramp rates adjustable from 0.1 to 70°C/min; supports up to three independent temperature ramps per run
• Dual independent inlet system: configurable as split/splitless capillary injectors (accepting columns up to 1.2 mm OD), each with septum purge (3 mL/min default), back-pressure regulation, and electronic flow control decoupled from column flow
• Integrated thermal conductivity detector (TCD): maximum operating temperature 400°C; single-filament configuration with reference/analyte flow balancing; minimum detectable level 400 ng/mL in helium carrier; linear dynamic range >10⁵ (±5%)
• Flame photometric detector (FPD): dual-mode combustion (air/H₂ or O₂/H₂); sulfur mode sensitivity 20 pg S/sec, selectivity >10⁵ g S/g C; phosphorus mode sensitivity 0.9 pg P/sec, selectivity >10⁶ g P/g C; operating range up to 300°C
• HP-IB (IEEE-488) interface standard; fully compatible with HP ChemStation (v.A.03.x and earlier), OpenLab CDS legacy drivers, and third-party DAQ software supporting GPIB protocols
• Refurbished units include verified HP 7673B autosampler (tray-based, 100-position), all interconnect cables, oven insulation integrity check, and full electrical safety certification per IEC 61010-1

Sample Compatibility & Compliance

The Agilent 5890 II GC accommodates a broad spectrum of sample matrices—including hydrocarbon mixtures, pesticide residues, essential oils, residual solvents, and environmental extracts—when paired with appropriate stationary phases (e.g., DB-5ms, HP-INNOWAX, or OV-101). Capillary column support includes standard 0.1–0.53 mm ID fused silica tubing with proper ferrule sealing. The system meets fundamental requirements for GLP-compliant environments when operated with audit-trail-enabled software (e.g., ChemStation with 21 CFR Part 11 add-on modules). While not certified for current FDA GMP production use without requalification, it satisfies ISO/IEC 17025 clause 5.5.2 for equipment verification in accredited testing laboratories performing method transfer or historical data reconciliation.

Software & Data Management

Data acquisition and processing are managed via HP ChemStation (DOS or Windows-based versions A.03.04 through A.09.03), which provides full method programming, peak integration, calibration curve generation, and report export in CSV/PDF formats. All refurbished units ship with validated installation media, driver packages, and documentation bundles—including original Agilent 5890 Series II Operator’s Manual (Part No. 0850-1017), maintenance logs, and post-refurbishment performance test reports. SpectraLab provides remote configuration assistance and optional on-site startup support for integration into existing LIMS or ELN infrastructures.

Applications

• Environmental analysis: BTEX quantification in groundwater (EPA Method 8021B), chlorinated hydrocarbons in soil extracts (EPA 8081)
• Petrochemical QA/QC: hydrocarbon type analysis (HTA) in naphtha, gasoline oxygenate screening (ASTM D4815)
• Pharmaceutical residual solvent testing: Class 2 solvents (ICH Q3C) using headspace-GC/FID (FPD used for sulfur-containing impurities)
• Food & flavor chemistry: terpene profiling in citrus oils, off-flavor compound identification (e.g., geosmin, 2-methylisoborneol)
• Academic teaching labs: foundational GC theory instruction, retention index determination, detector response factor studies

FAQ

Is the Agilent 5890 II GC compliant with current regulatory standards?

Yes—when paired with validated software and operated under documented procedures, it meets ISO/IEC 17025 and ASTM E2655 requirements for laboratory equipment qualification. Full 21 CFR Part 11 compliance requires ChemStation with approved electronic signature and audit trail modules.
What column types are supported?

All standard fused-silica capillary columns (0.1–0.53 mm ID, up to 1.2 mm OD), packed stainless steel or glass columns (up to ¼-inch OD), and megabore capillaries. Split/splitless inlets accommodate both narrow-bore and wide-bore configurations.
Does the system include an autosampler?

Yes—each unit ships with a fully tested HP 7673B autosampler (100-vial tray), including syringe, needle, and wash station functionality.
Can this GC be connected to modern PCs?

Yes—via USB-to-GPIB adapter (e.g., National Instruments GPIB-USB-HS) or dedicated GPIB interface card. Driver support is maintained in Windows 10/11 via legacy mode or virtual machine environments.
What documentation is provided post-refurbishment?

Calibration certificates (oven, detector, flow), leak test reports, functional verification checklist, refurbished parts log, and Agilent OEM service manuals—all traceable and dated.