Agilent 7820A Used Gas Chromatograph
| Brand | Agilent Technologies |
|---|---|
| Origin | USA |
| Model | 7820A |
| Condition | Refurbished & Certified Pre-Owned |
| Compliance | Fully Tested to Original Agilent Specifications |
| Software | Includes OpenLab CDS Basic (License Transferable per Agilent Policy) |
| Detector Options Supported | FID, TCD, ECD, NPD, FPD |
| Column Compatibility | Up to 2 x 30 m capillary columns or packed columns |
| Carrier Gas | Helium, Hydrogen, Nitrogen (with optional electronic pressure control) |
| Temperature Range | Oven: 35–450 °C |
| Injector | 50–450 °C |
| Detector | 50–450 °C |
| Data System | PC-based with USB/Ethernet connectivity |
| Regulatory Readiness | Supports 21 CFR Part 11-compliant audit trails when deployed with validated OpenLab CDS configuration |
Overview
The Agilent 7820A Gas Chromatograph is a robust, entry-level benchtop GC system engineered for routine quantitative and qualitative analysis in regulated and non-regulated laboratory environments. Built on Agilent’s proven pneumatic architecture and microprocessor-controlled oven design, the 7820A employs split/splitless injection, precision temperature programming, and flame ionization detection (FID) as standard—delivering high reproducibility and method transferability across laboratories. Its modular detector bay accommodates up to three detectors (FID, TCD, ECD, NPD, or FPD), enabling flexible configuration for applications ranging from residual solvent analysis in pharmaceuticals to hydrocarbon profiling in petrochemicals. As a pre-owned instrument, each unit undergoes full functional validation—including leak testing, baseline stability assessment, retention time repeatability (<0.02 min RSD), and detector sensitivity verification against Agilent’s original factory acceptance criteria.
Key Features
- Thermally stable, forced-air oven with ±0.01 °C temperature uniformity and ramp rates up to 120 °C/min
- Dual independent inlet capability (split/splitless or cool-on-column) with electronic pressure control (EPC) for precise carrier gas flow management
- Integrated hydrogen generator compatibility and auto-ignition FID with real-time flame monitoring
- Modular detector compartment supporting hot-swappable detector installation without system shutdown
- Embedded web server interface for remote status monitoring and basic method editing via standard browser
- Backward-compatible with Agilent ChemStation and OpenLab CDS software platforms for seamless data migration and reporting
Sample Compatibility & Compliance
The 7820A accommodates volatile and semi-volatile organic compounds (VOCs/SVOCs) across matrices including aqueous extracts, organic solvents, headspace vials, and thermal desorption tubes. It supports ASTM D3699 (gasoline aromatics), EPA Method 8260D (VOCs in water), USP (residual solvents), and ISO 11843-2 (detection limit validation). All refurbished units are calibrated using NIST-traceable standards and documented per ISO/IEC 17025-aligned internal procedures. Certificate of Reconditioning includes full performance verification report, firmware revision log, and detector signal-to-noise ratio (S/N ≥ 500:1 for FID at 100 pg C/sec).
Software & Data Management
Shipped with Agilent OpenLab CDS Basic Edition (licensed for single-instrument use), the system provides full acquisition, processing, and reporting functionality—including peak integration, calibration curve generation, and customizable report templates. When deployed in validated environments, OpenLab CDS can be configured to meet FDA 21 CFR Part 11 requirements, including electronic signatures, audit trail logging, user access controls, and data integrity safeguards. Raw data files (.D format) remain fully compatible with Agilent MassHunter and third-party chromatography data systems (CDS) via AIA/ANDI import protocols.
Applications
- Pharmaceutical QC: Residual solvent quantitation (USP , ICH Q3C), excipient purity screening, and stability-indicating assay development
- Environmental Testing: Pesticide residue analysis in soil/water (EPA 8081B), BTEX and PAH profiling in groundwater (EPA 8270E)
- Food & Beverage: Flavor compound profiling, ethanol content verification, and mycotoxin derivatization analysis
- Petrochemical QA: Simulated distillation (ASTM D2887), hydrocarbon type analysis (HTA), and sulfur compound detection (ASTM D5453)
- Academic & Contract Research: Method development, teaching labs, and GLP-compliant contract studies requiring traceable instrumentation history
FAQ
Is this instrument eligible for Agilent warranty or service contracts?
Yes—refurbished 7820A systems qualify for Agilent’s Certified Pre-Owned (CPO) program, including optional 1–3 year hardware support contracts with priority response SLAs.
Can I upgrade to a mass selective detector (MSD) later?
No—the 7820A platform does not support direct MSD coupling. For GC-MS capability, Agilent recommends migration paths to the 5977B GC/MSD or 8890/5977B systems.
What documentation accompanies the instrument?
Each unit ships with Certificate of Reconditioning, full test report, OpenLab CDS license key, printed operation manual (English), and firmware update history log.
Are consumables and spare parts available?
All original Agilent GC consumables—including liners, septa, columns, and detector components—are commercially available through authorized distributors and Agilent’s global parts portal.
Does the system include a computer and monitor?
No—host PC requirements (Windows 10/11 64-bit, 8 GB RAM, 256 GB SSD) are specified in the OpenLab CDS installation guide; customers supply or procure compatible hardware separately.
