Agilent 5890II Gas Chromatograph with TCD and Split/Splitless Inlet
| Brand | Agilent Technologies |
|---|---|
| Origin | Canada |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 5890II TCD |
| Price Range | USD $6,800–$13,600 (FOB) |
| Product Category | Chromatography |
| Operational Age | 4–5 years |
| Warranty | 6 months |
| Detector Configuration | Thermal Conductivity Detector (TCD) + Split/Splitless (S/SL) Inlet |
| Oven Temperature Range | 4°C above ambient to 450°C |
| Temperature Programming | Up to 3 ramps, initial/final holds, 0.1–70°C/min ramp rates, max 650 min run time |
| Injector Zones | Five independently heated zones |
| Column Compatibility | Capillary columns up to 1.2 mm OD |
| TCD Operating Range | Up to 400°C |
| TCD Minimum Detectable | 400 pg/mL carrier gas (equivalent to 1 ppm neon in 1 mL air) |
| TCD Linear Dynamic Range | ±5% over 10⁵ |
| FPD Optional Configurations | Sulfur mode (20 pg S/s, selectivity 10⁵ g S/g C), Phosphorus mode (0.9 pg P/s, selectivity 10⁶ g P/g C) |
| Septum Purge | Built-in at 3 mL/min |
| Back-Pressure Control | Enables independent split flow adjustment without affecting column flow |
| Injection Modes | Split and splitless (purge time adjustable in 0.01-min increments) |
Overview
The Agilent 5890II Gas Chromatograph is a robust, dual-detector benchtop system engineered for high reproducibility in routine and method-transfer applications across environmental, petrochemical, and quality control laboratories. This refurbished unit integrates a precision thermal conductivity detector (TCD) with a fully functional split/splitless (S/SL) inlet—both operating under rigorous temperature-controlled conditions. The system employs classic packed- and capillary-column-compatible gas chromatographic separation principles, relying on differential partitioning of analytes between a mobile phase (carrier gas, typically He or H₂) and a stationary phase coated inside fused-silica or stainless-steel columns. Its modular architecture supports method portability between legacy and modern GC platforms, making it particularly valuable for labs maintaining continuity with ASTM D3606, ISO 6416, or USP chromatographic procedures.
Key Features
- Five independently heated zones—including inlet, detector, oven, and auxiliary modules—ensure precise thermal management across all critical interfaces.
- Back-pressure regulated pneumatic system allows independent optimization of split flow rate without perturbing column head pressure or retention time stability.
- TCD with single-filament design incorporates fluidic switching between reference and analytical carrier streams, minimizing baseline drift and enhancing long-term signal stability.
- Split/splitless inlet supports both quantitative volatiles analysis (via split mode) and trace-level detection (via optimized splitless purging), with purge time programmable in 0.01-minute increments.
- Column oven delivers linear ramp control from 0.1 to 70°C/min across a full operational range of 4°C above ambient to 450°C, accommodating high-boiling-point compounds and method scalability.
- Integrated septum purge (3 mL/min) reduces bleed artifacts and extends consumable lifetime—critical for GLP-compliant environments requiring audit-trail consistency.
Sample Compatibility & Compliance
The 5890II accommodates standard 1/8″ and 1/4″ packed columns as well as capillary columns up to 1.2 mm outer diameter, supporting diverse sample matrices including hydrocarbon mixtures, permanent gases, light alcohols, and halogenated solvents. Its TCD configuration meets sensitivity requirements for ASTM D1945 (analysis of natural gas), while optional FPD capability—though not included in this base configuration—can be validated per EPA Method 1664 or EN 15510 for sulfur/phosphorus speciation. All firmware and hardware revisions comply with IEC 61000-4 electromagnetic compatibility standards. The system operates within FDA 21 CFR Part 11 readiness boundaries when paired with compliant data acquisition software; electronic signatures, audit trails, and user access controls are implementable via third-party LIMS integration.
Software & Data Management
This unit ships with original Agilent ChemStation-compatible firmware and supports analog output (0–1 V or 0–5 V) for connection to modern data systems. While native DOS-based acquisition is discontinued, the instrument’s RS-232 interface enables seamless integration with current-generation chromatography data systems (CDS) such as OpenLab CDS or Chromeleon via serial-to-USB adapters. All method parameters—including temperature programs, detector settings, and injection sequences—are stored in non-volatile memory and retain integrity after power cycling. SpectraLab Scientific performs full functional validation prior to shipment, documenting baseline noise, retention time repeatability (<0.05% RSD), and detector response linearity per NIST-traceable test mixtures.
Applications
- Residual solvent analysis in pharmaceutical excipients (ICH Q3C-compliant screening using TCD with helium carrier).
- Hydrocarbon fingerprinting in fuel blends and lubricants per ASTM D5186.
- Inert gas purity testing (e.g., O₂, N₂, Ar, CO₂) in semiconductor manufacturing environments.
- Quality assurance of industrial-grade ethanol, acetone, and methyl ethyl ketone (MEK) per ISO 8518.
- Educational laboratory instruction in fundamental chromatographic theory, retention modeling, and detector physics.
FAQ
Is this instrument fully calibrated and certified prior to shipment?
Yes. Each unit undergoes comprehensive performance qualification (PQ) including oven temperature accuracy verification (±0.5°C), detector response linearity assessment (R² ≥ 0.999), and retention time reproducibility testing across three consecutive injections.
Can this GC be upgraded to support electronic pressure control (EPC)?
No—the 5890II lacks EPC hardware architecture; however, its mechanical back-pressure regulator provides comparable precision for method transfer from EPC-equipped platforms.
What documentation accompanies the system?
You receive a full service history log, PQ report, calibration certificate traceable to NIST standards, and original Agilent operation manuals (English). No proprietary software licenses are included.
Is remote technical support available post-purchase?
Yes. SpectraLab Scientific offers email-based engineering support during warranty period, including troubleshooting guidance, method adaptation notes, and spare parts sourcing assistance.
Are consumables and replacement parts still available?
All major components—including TCD filaments, septa, liners, and column nuts—are commercially available through global Agilent-authorized distributors and third-party OEM suppliers.
