Agilent 6890A Gas Chromatograph (Refurbished)

Overview

The Agilent 6890A Gas Chromatograph is a high-performance, benchtop analytical instrument engineered for precision separation and quantification of volatile and semi-volatile organic compounds. Built upon Agilent’s fifth-generation Electronic Pressure Control (EPC) architecture, the 6890A delivers exceptional retention time reproducibility (<0.008 min RSD), precise flow/pressure regulation (±0.01 psi), and real-time diagnostic monitoring of gas delivery integrity. Its modular design supports dual inlet/detector configurations and integrates seamlessly with mass spectrometric detection (e.g., 5973N MSD) for GC/MS applications. This refurbished unit has undergone full functional validation—including oven temperature calibration (range: –40 to 400 °C, ramp rate up to 120 °C/min), detector baseline stability assessment (FID noise < 1.5 pA RMS), and EPC leak verification—performed at SpectraLab Scientific’s ISO/IEC 17025-aligned service facility. All firmware is updated to revision G1701DA Rev. A.03.04 or higher, ensuring compatibility with modern Windows-based ChemStation environments.

Key Features

• Fifth-generation EPC system with digital pressure transducers and microprocessor-controlled pneumatic modules for sub-millisecond response and long-term drift compensation
• High-efficiency column oven with rapid cooling capability (250 °C/min from 350 °C to 50 °C), reducing cycle time by up to 40% versus prior-generation GCs
• Split/splitless inlet with electronic flow programming, supporting both conventional and low-bleed column operation (0.1–100 mL/min He/N₂/H₂)
• Hydrogen Flame Ionization Detector (FID) with linear dynamic range >10⁷ and detection limit <1.8 pg C/sec (n-decane)
• Agilent G6501B autosampler with 100-position vial capacity, programmable syringe wash, and integrated SPME fiber holder for headspace, liquid, and solid-phase microextraction workflows
• Real-time self-diagnostics including inlet pressure validation, detector status reporting, and oven thermal profile logging
• Front-panel LCD interface with intuitive menu navigation and embedded method storage (up to 100 methods)

Sample Compatibility & Compliance

The 6890A accommodates a broad spectrum of sample matrices—including environmental water extracts, petrochemical distillates, pharmaceutical residual solvents, food flavor volatiles, and forensic toxicology specimens—when paired with appropriate capillary columns (e.g., DB-5ms, HP-INNOWAX, or DB-VRX). Its hardware and software architecture align with method requirements specified in ASTM D3606 (benzene/toluene in gasoline), USP (chromatographic separations), and EPA Method 8260C (volatile organic compounds in solids/liquids). While not pre-certified for 21 CFR Part 11, the system supports audit-trail-enabled ChemStation configurations compliant with GLP and GMP documentation standards when deployed with validated IT infrastructure and procedural controls.

Software & Data Management

Operation is managed via Agilent ChemStation (G1701DA or later), a Windows-based acquisition and analysis platform offering peak integration, library search (NIST/EPA/WHO), calibration curve generation (linear, quadratic, weighted), and report templating. Raw data (.D files) are stored in vendor-neutral formats compatible with third-party review tools (e.g., OpenChrom, Chromeleon). The workstation includes full instrument control, sequence management, and post-run reprocessing capabilities. All refurbished units ship with licensed ChemStation software, driver packages, and comprehensive electronic documentation (user manuals, maintenance guides, and safety protocols).

Applications

• Environmental analysis: VOC screening in groundwater per EPA 524.2 and 8260C
• Petrochemical QA/QC: Hydrocarbon group-type analysis (PIONA) and sulfur compound profiling
• Pharmaceutical testing: Residual solvent quantification per ICH Q3C guidelines
• Food & beverage: Flavor compound profiling, ethanol content verification, and contaminant screening
• Academic research: Reaction monitoring, polymer degradation product identification, and metabolite profiling

FAQ

Is this unit fully tested and certified before shipment?
Yes. Each 6890A undergoes a 22-point functional verification protocol, including temperature calibration, EPC linearity check, FID sensitivity verification, and autosampler precision testing (RSD < 1.2% for 10 injections). A Certificate of Performance Verification is provided.
What warranty coverage is included?
A 6-month limited hardware warranty covers defects in materials and workmanship under normal laboratory use. Exclusions include consumables (septa, liners, columns), misuse, or unauthorized modifications.
Can this GC be upgraded to support mass spectrometry?
Yes. The 6890A features a standard MS interface port and is fully compatible with Agilent 5973N, 5975, or 5977 Series MSDs when equipped with appropriate interface hardware and firmware updates.
Does the system include original Agilent documentation?
Yes—electronic copies of the Agilent 6890A User Manual, Maintenance Guide, and Safety Instructions are delivered with the instrument, along with SpectraLab’s Refurbishment Summary Report.
Is remote support available after purchase?
Yes. SpectraLab provides complimentary remote diagnostics and method troubleshooting for the duration of the warranty period, using TeamViewer or equivalent secure screen-sharing tools.