Device built-in

Agilent 6890 Gas Chromatograph Performance Overview

Core Performance Features
The Agilent 6890 Gas Chromatograph represents Agilent's classic mid-to-high end model, featuring Capillary Flow Technology (CFT) that achieves carrier gas pressure control precision of ±0.001 psi with retention time reproducibility RSD <0.008%. Its modular design supports simultaneous installation of dual detectors (e.g., FID+ECD), meeting the requirements for multi-parameter analysis of complex samples.

Key Technical Specifications

1. Temperature Control System:

   • Column oven temperature range: Ambient +4°C to 450°C
   • Maximum heating rate: 120°C/min with up to 20 programmable temperature steps
   • Independently controlled inlet temperature up to 400°C (450°C in PTV mode)

2. Detector Performance:

   • Flame Ionization Detector (FID) sensitivity: <1.8 pg C/s (propane)
   • Micro-Electron Capture Detector (μECD) linear range: >10⁵
   • Thermal Conductivity Detector (TCD) baseline noise: <5 μV

3. Data Acquisition:

   • Maximum 500 Hz acquisition rate for complete capture of peaks as narrow as 1s
   • Compatible with both Agilent ChemStation and OpenLab CDS data systems

Typical Applications

• Environmental Monitoring: Compliant with EPA 8260 method requirements for detecting 56 VOCs in water (LOD: 0.1-5 μg/L)
• Petrochemicals: C6-C44 hydrocarbon analysis per ASTM D5134 standard
• Food Safety: Simultaneous analysis of organochlorine/pyrethroid pesticides (GB 23200.113-2023)
• Pharmaceutical: Residual solvent method validation per ICH Q3C guidelines

System Expandability

• Optional 7693A Autosampler (100-vial capacity)
• Compatible with 5975 series mass spectrometers (GC-MS)
• 21 CFR Part 11 certified, meeting GMP data integrity requirements

Still widely used in third-party testing facilities and university laboratories, well-maintained pre-owned systems in 2025 are priced at approximately ¥80,000-150,000 RMB (configuration-dependent). Its reliable performance makes it an ideal platform for method development and routine analysis.

(Note: Specifications reflect manufacturer data. "Capillary Flow Technology" and "ChemStation" are Agilent trademarks.)

Would you like application notes for specific methods or maintenance recommendations for pre-owned systems?