Agilent 7890A-5975C GC-MS System (G3171A)

Overview

The Agilent 7890A-5975C GC-MS System (G3171A) is a refurbished, fully tested benchtop gas chromatography–mass spectrometry platform engineered for high-fidelity qualitative and quantitative analysis of volatile and semi-volatile organic compounds. This integrated system couples the precision temperature control and electronic pneumatic control (EPC) architecture of the Agilent 7890A GC with the inert triple-axis quadrupole mass selective detector (MSD) of the 5975C series. The system operates on electron ionization (EI) mode with optional chemical ionization (CI) capability, delivering consistent mass accuracy (< 0.1 u), high spectral reproducibility, and robust signal-to-noise ratios across extended acquisition periods. Designed for routine laboratory environments—including environmental testing labs, pharmaceutical QC facilities, forensic chemistry units, and academic research cores—the platform supports method transfer, regulatory compliance workflows, and multi-user operation without hardware reconfiguration.

Key Features

• Agilent 7890A GC module featuring dual independent EPC channels for simultaneous inlet and detector pressure/flow control, enabling precise retention time locking and method scalability
• 5975C Inert MSD with triple-axis detector geometry, reducing source contamination and extending cleaning intervals; optimized for low-picoamp sensitivity (e.g., < 10 fg OFN in full-scan mode)
• Integrated CTC Analytics GC PAL autosampler supporting 108-position vial capacity, programmable injection volumes (0.1–100 µL), and solvent rinse protocols
• Modular oven design with rapid heating/cooling rates (up to 120 °C/min ramp, -80 °C to 450 °C operating range) and active thermal management for baseline stability
• Front-panel GC interface and MassHunter software compatibility (v B.08.x or later) for instrument control, data acquisition, and library search (NIST, Wiley)
• Refurbishment includes full functional validation per Agilent-recommended protocols: leak testing, tuning verification (autotune report included), column flow calibration, and detector gain optimization

Sample Compatibility & Compliance

This GC-MS configuration accommodates standard 0.25–0.53 mm ID fused-silica capillary columns (e.g., DB-5ms, HP-5MS, DB-VRX) and supports split/splitless, PTV, and cold-on-column injection techniques. It meets essential performance criteria outlined in ASTM D5845 (determination of oxygenates in gasoline), EPA Method 8270D (semivolatile organics in solid waste), and USP for residual solvent analysis. While not supplied with FDA 21 CFR Part 11-compliant audit trail modules by default, the MassHunter software environment supports optional secure user authentication, electronic signatures, and configurable audit logging when deployed on validated IT infrastructure aligned with GLP/GMP documentation requirements.

Software & Data Management

Data acquisition and processing are performed using Agilent MassHunter Workstation Software (Qualitative and Quantitative Analysis editions). The system generates standard .D data folders compatible with third-party chemometric tools (e.g., MATLAB, SIMCA) and LIMS integration via OpenLab CDS or direct ASCII export. All refurbished units include licensed MassHunter software bundles with active support eligibility (subject to Agilent’s current maintenance terms). Raw data files retain full metadata—tuning parameters, acquisition timestamps, instrument configuration logs—and support retrospective reprocessing without loss of traceability.

Applications

• Environmental analysis: PAHs, PCBs, pesticides, and phthalates in soil, water, and air samples
• Pharmaceutical impurity profiling and residual solvent quantification per ICH Q3C guidelines
• Food safety screening: mycotoxins, flavor compounds, adulterants, and packaging migrants
• Forensic toxicology: drug metabolites, synthetic cannabinoids, and novel psychoactive substances
• Polymer additive identification and degradation product characterization
• Academic research in metabolomics, petroleomics, and atmospheric chemistry requiring compound class separation and structural elucidation

FAQ

Is this system supplied with original Agilent documentation and calibration certificates?
Yes—each unit includes scanned copies of the original factory test reports, refurbishment validation records, autotune reports, and GC/MS alignment logs.
Can this GC-MS be upgraded to support SIM/Scan hybrid acquisition or deconvolution software?
Yes—MassHunter Qualitative Analysis supports AMDIS deconvolution and custom SIM methods; hardware-level upgrades (e.g., high-efficiency EI source) require Agilent service authorization.
What consumables and spare parts are recommended for initial operation?
Standard recommendations include Agilent-certified GC columns (e.g., 30 m × 0.25 mm × 0.25 µm DB-5ms), gold-plated septa, graphite ferrules, MS source cleaning kits (G1098-60010), and tune mix (G1969-85000).
Is remote diagnostics or Agilent technical support available post-purchase?
SpectraLab Scientific provides 30-day post-delivery remote assistance; extended Agilent support contracts may be procured directly through Agilent Technologies’ regional service centers.
Does the system include a nitrogen generator or external vacuum pump?
No—this configuration requires connection to a certified lab-grade nitrogen supply (≥99.999% purity, ≤0.1 ppm O₂/H₂O) and a two-stage rotary vane vacuum pump meeting Agilent’s minimum 0.05 mTorr base pressure specification.