Agilent 7890A GC System Coupled with 7000A/B Triple Quadrupole Mass Spectrometer (Used)

Overview

The Agilent 7890A Gas Chromatograph coupled with the 7000A/B Triple Quadrupole Mass Spectrometer represents a rigorously validated, production-grade GC–MS/MS platform engineered for high-sensitivity quantitative analysis in regulated and research environments. This used instrument configuration leverages Agilent’s proven GC architecture—featuring precision pneumatic control, advanced oven temperature programming (up to 450 °C), and robust inlet systems (split/splitless, PTV, or cold on-column)—integrated with a triple quadrupole mass spectrometer operating on tandem mass spectrometry (MS/MS) principles. The 7000A/B employs a three-stage quadrupole design: Q1 isolates precursor ions, Q2 serves as a collision cell using nitrogen/helium gas mixtures to induce controlled fragmentation, and Q3 transmits and detects specific product ions. This selective reaction monitoring (SRM) capability delivers exceptional specificity and sub-pg-level detection limits for target analytes in complex matrices—critical for environmental residue testing, food safety screening, forensic toxicology, and pharmaceutical impurity profiling.

Key Features

• Agilent 7890A GC: Dual independent oven zones, programmable temperature ramping (0.1–120 °C/min), electronic pressure control (EPC) with <0.001 psi resolution, and support for up to two detectors and three inlets.
• 7000A/B Triple Quadrupole MS: High-transmission ion optics, fast polarity switching (5 orders of magnitude (linear response).
• Integrated MassHunter Workstation software: Enables method development, acquisition, quantitative analysis (with internal standard calibration), and audit-trail-enabled data review compliant with GLP/GMP workflows.
• Robust vacuum system: Dual-stage turbomolecular pump (70 L/s) paired with a dry scroll backing pump ensures stable high-vacuum operation (>1×10⁻⁶ Torr) during extended runs.
• Ion source: Removable EI source with filament auto-tuning, optimized for reproducible ionization across diverse compound classes including pesticides, PAHs, PCBs, and volatile organic compounds (VOCs).

Sample Compatibility & Compliance

This GC–MS/MS system is validated for analysis of thermally stable and semi-volatile organic compounds ranging from C₂ to ~C₄₀. It accommodates liquid, solid (via solvent extraction or thermal desorption), and gaseous samples when interfaced with appropriate sample introduction modules (e.g., autosampler, purge-and-trap, or thermal desorption unit). The platform meets technical requirements for multiple international standards—including ASTM D5845 (determination of oxygenates in gasoline), EPA Methods 8270D (semivolatiles), 1613B (PCBs), and 1631E (dioxins/furans)—and supports 21 CFR Part 11-compliant data integrity when configured with appropriate MassHunter security settings (user roles, electronic signatures, and immutable audit trails). All refurbished units undergo full functional verification per Agilent’s recommended preventive maintenance schedule, including detector sensitivity checks, mass calibration stability assessment, and EPC linearity validation.

Software & Data Management

Operation and data handling are managed through Agilent MassHunter Workstation software (licensed version B.08.0x or newer), which provides a unified interface for instrument control, real-time spectral visualization, quantitative batch processing, and report generation. The software includes built-in tools for library searching (NIST/EPA/NIH), peak deconvolution, and isotopic pattern matching. For regulated laboratories, optional features include electronic signature enforcement, role-based access control, and automated backup archiving aligned with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Raw data files (.D format) are fully compatible with third-party reprocessing tools and long-term archival systems.

Applications

• Environmental: Quantification of trace-level contaminants in soil, water, and air—e.g., organochlorine pesticides, brominated flame retardants, and dioxin-like compounds.
• Food & Agriculture: Multi-residue pesticide analysis in fruits, vegetables, and animal feed; mycotoxin screening; and veterinary drug residue confirmation.
• Pharmaceutical: Residual solvent quantitation (ICH Q3C), genotoxic impurity detection, and extractables/leachables profiling per USP .
• Forensics & Clinical: Targeted quantification of drugs of abuse, metabolites, and endogenous biomarkers in biological fluids using stable isotope-labeled internal standards.
• Materials Science: Identification and quantification of volatile decomposition products from polymers and coatings under thermal stress.

FAQ

Is this a factory-refurbished unit or dealer-refurbished?
This instrument has undergone comprehensive third-party refurbishment by an ISO 9001-certified service provider specializing in Agilent GC–MS platforms. All critical subsystems—including GC oven, injector, detector, vacuum pumps, and electronics—are functionally tested against original Agilent specifications.
What documentation accompanies the system?
Each unit ships with a full refurbishment certificate, post-service performance verification report (including sensitivity, mass accuracy, and retention time stability data), MassHunter software license transfer documentation, and a 12-month limited hardware warranty.
Can the system be upgraded to support newer MassHunter versions or add LC–MS compatibility?
The 7000A/B MS firmware and MassHunter software are backward-compatible up to vB.10.x. However, this GC–MS/MS configuration does not support LC source integration; it is purpose-built for gas-phase separation only.
Are consumables and spare parts still available?
Yes—Agilent continues to supply all major consumables (columns, liners, septa, filaments, detector components) and service kits for the 7890A and 7000-series MS. Critical spares are stocked by authorized distributors globally.
Does installation include on-site qualification (IQ/OQ)?
Installation support includes basic hardware commissioning and software setup. Full GxP-compliant IQ/OQ/PQ documentation and execution are available as an optional service through certified Agilent partners.