Varian CP-3900 Gas Chromatograph (Refurbished)
| Brand | Varian |
|---|---|
| Origin | USA |
| Model | CP-3900 |
| Detection Options | FID, MSD |
| Injector Types | Split/Splitless (SSI), Packed Column |
| Autosamplers | CP-8410, CTC Combi PAL |
| Column Oven Temp Range | Ambient +10 °C to 450 °C |
| Temperature Program | 7-ramp, 8-step |
| Electronic Pressure Control (EPC) | Yes |
| Network Interface | Ethernet |
| Warranty | 6 months |
| Operational Age | 3–4 years |
| Compliance | ASTM D3606, ISO 10301, USP <621>, FDA 21 CFR Part 11 ready (with optional software) |
Overview
The Varian CP-3900 Gas Chromatograph is a high-performance, modular benchtop GC system originally engineered for robust routine analysis in regulated and research laboratories. Built on Varian’s legacy of precision gas chromatography architecture, the CP-3900 employs capillary column separation coupled with carrier gas flow control via electronic pressure control (EPC) modules—ensuring reproducible retention times and quantitative accuracy across extended run sequences. Its thermally stable oven supports rapid heating and cooling (up to 120 °C/min ramp rates), enabling efficient method development and high-throughput screening. Designed for flexibility, the platform accommodates up to three independently controlled inlets and three detectors simultaneously—including flame ionization (FID), thermal conductivity (TCD), electron capture (ECD), nitrogen-phosphorus (NPD), pulsed flame photometric (PFPD), and mass spectrometric detection (MSD) when interfaced with compatible quadrupole or ion trap mass analyzers. This refurbished unit has undergone full functional validation at SpectraLab Scientific’s ISO/IEC 17025-accredited calibration facility, including leak testing, detector sensitivity verification, oven temperature uniformity mapping, and EPC linearity assessment.
Key Features
- Modular inlet configuration: Supports split/splitless (SSI), packed-column, and programmable temperature vaporizing (PTV) inlets—enabling direct solid sample introduction, large-volume injection, and cold-on-column techniques
- Advanced oven architecture: 7-ramp, 8-step temperature programming with ±0.1 °C stability over 450 °C maximum; rapid cool-down via active air circulation minimizes cycle time
- Electronic pressure and flow control (EPC/EFC): Independent digital regulation per inlet and detector channel; supports helium, hydrogen, and nitrogen carrier gases with real-time diagnostics and automated leak compensation
- Network-ready operation: Integrated 10/100 Mbps Ethernet interface compliant with IEEE 802.3; enables remote monitoring, method transfer, and integration into LIMS or ELN environments
- Dual autosampler compatibility: Fully validated with Varian CP-8410 and CTC Analytics Combi PAL platforms—supporting vial-based liquid, headspace, and SPME fiber handling
- Robust mechanical design: Industrial-grade stainless-steel gas pathways, sealed detector housings, and vibration-damped optical mounts ensure long-term baseline stability
Sample Compatibility & Compliance
The CP-3900 is routinely deployed for volatile and semi-volatile organic compound (VOC/SVOC) analysis across environmental, petrochemical, pharmaceutical, and food safety applications. It meets method requirements for EPA Methods 8021B (halogenated hydrocarbons), 8260C (VOCs by purge-and-trap), ASTM D3606 (benzene/toluene in gasoline), and ISO 10301 (residual solvents in polymers). When configured with FID and CP-8410 autosampler, it achieves RSD ≤1.2% for replicate n-decane injections (n = 6, 100 ng on-column). All refurbished units undergo GLP-aligned qualification: Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) documentation is provided upon request. Systems are pre-configured for 21 CFR Part 11 compliance when paired with validated chromatography data systems (CDS) supporting audit trails, electronic signatures, and user access controls.
Software & Data Management
The CP-3900 operates natively with Varian Star™ v6.x or newer CDS software—fully compatible with Windows 10/11 (64-bit) and supporting AIA/ANDI standard file export. Method templates include built-in calibration curve generation (linear, quadratic, weighted), peak integration algorithms (valley-to-valley, tangent skim), and customizable reporting per ISO/IEC 17025 clause 7.8. Data integrity safeguards include automatic backup to network drives, timestamped raw data archiving, and version-controlled method storage. Optional Star Connect™ module enables bidirectional communication with enterprise LIMS, allowing automated sample queue dispatch and result ingestion without manual intervention. All software licenses are transferred with hardware; no subscription fees apply.
Applications
- Environmental: Quantification of BTEX, PAHs, chlorinated solvents, and pesticides in water, soil, and air matrices
- Petrochemical: Hydrocarbon group-type analysis (HTA), simulated distillation (SimDis), and sulfur speciation in fuels
- Pharmaceutical: Residual solvent testing per ICH Q3C guidelines; assay purity profiling of APIs and excipients
- Food & Flavor: Volatile aroma compound profiling (e.g., esters, aldehydes, terpenes) in beverages and essential oils
- Forensics: Toxicology screening for drugs of abuse, accelerants in arson investigation, and ignitable liquid residue identification
FAQ
Is this instrument fully tested prior to shipment?
Yes. Each CP-3900 undergoes comprehensive functional testing—including leak integrity verification, detector response linearity, oven temperature calibration, EPC accuracy verification, and autosampler precision assessment—per SpectraLab’s internal SOP-ANL-GC-003.
What documentation accompanies the system?
You receive a Certificate of Reconditioning, IQ/OQ/PQ summary report, maintenance log, original Varian manuals (digital), and a 6-month limited warranty covering parts and labor for defects in materials or workmanship.
Can the system be upgraded with modern detectors or software?
Yes. The CP-3900’s open architecture supports retrofitting with contemporary FID, TCD, or ECD modules; MSD integration requires compatible interface electronics and vacuum pump upgrades. Star™ v7.5+ is supported on modern Windows OS with appropriate driver packages.
Do you offer installation and training?
On-site installation, operational qualification, and two-day hands-on operator training are available as optional services—quoted separately based on geographic location and scope.
Are consumables and spare parts available?
SpectraLab maintains an inventory of genuine Varian GC consumables—including septa, liners, ferrules, columns, and detector components—as well as third-party validated alternatives meeting ASTM E260 and ISO 8573-1 purity standards.
