Thermo Fisher TSQ Quantum Access Triple Quadrupole Liquid Chromatography-Mass Spectrometer (Used)

Overview

The Thermo Fisher TSQ Quantum Access is a high-performance, triple quadrupole liquid chromatography–tandem mass spectrometer (LC-MS/MS) originally engineered for robust quantitative and qualitative analysis in regulated and research-intensive environments. Built upon Thermo Fisher’s proven Quantum platform architecture, the instrument employs electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) sources coupled to a three-stage quadrupole mass filter system. Its core operational principle relies on precursor ion selection in Q1, collision-induced dissociation (CID) in the RF-only Q2 collision cell, and product ion detection in Q3—enabling highly selective multiple reaction monitoring (MRM) and data-dependent acquisition (DDA) workflows. This configuration delivers exceptional sensitivity, specificity, and reproducibility for trace-level quantitation in complex matrices—particularly relevant to pharmacokinetic studies, food safety residue screening, and environmental contaminant analysis.

Key Features

• H-SRM (High-Selectivity Selected Reaction Monitoring): Enhances analytical specificity by optimizing dwell times, declustering potentials, and collision energies per transition—reducing chemical noise and improving signal-to-noise ratios without compromising throughput.
• Fast Polarity Switching: Achieves sub-second polarity switching between positive and negative ion modes within a single LC run, enabling comprehensive multi-analyte profiling without method duplication or column re-equilibration delays.
• Quantitation-Enhanced Data-Dependent MS/MS (QED-MS/MS): Integrates real-time MRM quantitation with triggered MS/MS spectral acquisition for simultaneous targeted quantification and structural confirmation—supporting both routine QC and exploratory identification tasks.
• Wide Dynamic Range & Linear Response: Engineered for reliable quantitation across four to five orders of magnitude, facilitating accurate measurement of analytes spanning low-pg/mL to high-ng/mL concentrations in biological fluids, extracts, and environmental samples.
• Robust Source Design: Features heated ESI and APCI probes with active desolvation gas control, optimized for high ion transmission efficiency and long-term stability—even under sustained operation with challenging sample types (e.g., plasma, soil extracts, food homogenates).

Sample Compatibility & Compliance

The TSQ Quantum Access accommodates standard reversed-phase, HILIC, and ion-pairing LC methods using 2.1 mm ID columns and flow rates from 0.2 to 1.0 mL/min. It interfaces seamlessly with Thermo’s Accela U-HPLC systems and third-party LC platforms via analog/digital I/O. From a regulatory standpoint, the instrument was originally designed to support compliance-driven laboratories: its hardware architecture enables stable performance under ISO/IEC 17025, USP , and ICH Q2(R2) validation frameworks. When operated with Xcalibur software v2.2 or later—and configured with appropriate user access controls, electronic signatures, and audit trail logging—it satisfies foundational expectations for data integrity as outlined in FDA 21 CFR Part 11 and EU Annex 11. Routine maintenance records, calibration logs, and system suitability test (SST) reports are fully exportable for internal QA review or external inspection.

Software & Data Management

Control and data processing are managed through Thermo Scientific Xcalibur software, which provides integrated method development, acquisition control, peak integration, library searching (NIST/EPA/Wiley-compatible), and customizable reporting templates. The software supports automated calibration, tuning, and diagnostic routines—including mass axis verification, resolution checks, and detector gain optimization. All raw data files (.RAW) retain full metadata (instrument parameters, sequence details, operator ID, timestamps), ensuring traceability. Audit trails record every modification to processing methods, integration events, and report generation—meeting minimum ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate). Backups and archive strategies can be implemented via network-attached storage or LIMS-integrated workflows.

Applications

This system is routinely deployed in applications requiring high-confidence quantitation alongside structural elucidation. Key use cases include bioanalytical method validation for small-molecule drugs and metabolites in plasma/urine; multi-residue pesticide screening in fruits, vegetables, and grains per EU SANTE/2023/1283 guidelines; detection of veterinary drug residues in meat and milk; quantification of persistent organic pollutants (POPs) such as PCBs and PBDEs in sediment and water; and endogenous biomarker profiling in clinical research cohorts. Its dual capability for MRM-based quantitation and DDA-enabled identification makes it especially valuable during assay development phases where method transfer, matrix effect assessment, and interference characterization are critical.

FAQ

What is the typical service life expectation for a refurbished TSQ Quantum Access unit?
Units offered with 6–8 years of prior operational history have undergone full functional refurbishment—including source cleaning, vacuum system inspection, detector recalibration, and electronics diagnostics—to restore baseline performance specifications consistent with manufacturer-recommended operating envelopes.
Does this system support FDA 21 CFR Part 11 compliance?
Yes—when deployed with Xcalibur v2.2+ and configured with role-based access control, electronic signatures, and enabled audit trail logging, the system meets technical prerequisites for Part 11 compliance; however, procedural adherence (e.g., SOPs, training records, change control) remains the responsibility of the end-user laboratory.
Can the TSQ Quantum Access perform both quantitative and qualitative analysis in a single run?
Yes—via QED-MS/MS mode, the instrument acquires primary MRM transitions for quantitation while dynamically triggering dependent MS/MS scans for compound identification, eliminating the need for separate acquisition methods.
Is source replacement or maintenance included in the 6-month warranty?
The warranty covers parts and labor for defects in materials or workmanship under normal use; consumables (e.g., ESI needles, capillaries, pump seals) and preventive maintenance services are excluded unless separately contracted.
What level of technical support is available post-purchase?
Buyers receive remote application assistance, software troubleshooting guidance, and access to Thermo Fisher’s public knowledge base; on-site engineering support may be arranged under optional service agreements.