Waters TQD Triple Quadrupole Liquid Chromatography Mass Spectrometer (Refurbished)

Overview

The Waters TQD is a high-performance, refurbished triple quadrupole liquid chromatography–tandem mass spectrometry (LC-MS/MS) system engineered for robust, high-throughput quantitative analysis in regulated and research environments. Based on the proven TQD platform, this instrument integrates Waters’ ACQUITY UPLC technology with a dedicated triple quadrupole mass analyzer operating under controlled vacuum and optimized ion optics. The system employs tandem mass spectrometry via precursor ion selection in Q1, collision-induced dissociation (CID) in the T-Wave™ RF-only collision cell (Q2), and product ion detection in Q3—enabling highly selective multiple reaction monitoring (MRM) acquisition. Designed for routine bioanalysis, environmental testing, food safety screening, and pharmaceutical QC/QA, the TQD delivers exceptional sensitivity, reproducibility, and method stability across extended operational cycles. Its architecture supports both electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI), ensuring broad analyte coverage without hardware modification.

Key Features

• Triple quadrupole mass analyzer with T-Wave™ collision cell for efficient fragmentation and high transmission efficiency
• Integrated ACQUITY UPLC front-end enabling sub-2-second peak widths and optimal chromatographic resolution
• RADAR™ acquisition mode: Simultaneous qualitative and quantitative data collection within a single run—ideal for matrix interference assessment, metabolite profiling, and impurity identification
• InliStart™ automated system suitability check: Performs real-time calibration, tune verification, and MRM channel generation prior to sample injection
• QCMonitor™ real-time data integrity engine: Monitors signal intensity, retention time shift, and peak shape deviations during acquisition; triggers alerts or halts runs upon user-defined threshold breaches
• TargetLynx™ quantitation software with automated integration, calibration curve fitting (linear/log-linear weighted), and ISO/IEC 17025-compliant reporting templates
• Quanpedia™ method library: Pre-configured MRM methods for common analytes (e.g., pesticides, mycotoxins, steroids, β-lactams) with validated dwell times and collision energies

Sample Compatibility & Compliance

The TQD accommodates diverse sample matrices—including plasma, urine, tissue homogenates, environmental water extracts, and food digests—without requiring major source reconfiguration. Its dual ESI/APCI ion source enables seamless switching between polar and non-polar compounds. All software modules comply with regulatory documentation standards: MassLynx v4.1 implements full 21 CFR Part 11 audit trails, electronic signatures, role-based access control, and secure data archiving. System validation packages support IQ/OQ/PQ execution per ASTM D7596, USP , and ISO/IEC 17025:2017 requirements. Routine performance verification follows Waters’ recommended daily tuning protocols and internal standard response criteria.

Software & Data Management

Data acquisition, processing, and reporting are unified within the MassLynx environment. Raw data files (.raw) are stored in a structured, timestamped hierarchy compliant with laboratory information management systems (LIMS). TargetLynx provides batch processing of hundreds of samples with automatic outlier detection, carryover correction, and IS-normalized quantitation. TrendPlot™ generates longitudinal performance dashboards—tracking detector response, mass accuracy drift, and retention time stability over weeks or months—to support preventive maintenance scheduling and CAPA documentation. All raw and processed data are exportable in .csv, .pdf, and .xml formats for third-party statistical analysis or regulatory submission (e.g., FDA eCTD).

Applications

• Clinical toxicology: Quantification of drugs of abuse, therapeutic drug monitoring (TDM), and endogenous biomarkers in biological fluids
• Pharmaceutical development: Impurity profiling, degradation product identification, and pharmacokinetic (PK) studies in preclinical models
• Food safety: Multi-residue screening of veterinary drug residues (e.g., sulfonamides, fluoroquinolones) at EU MRL levels
• Environmental analysis: Detection of persistent organic pollutants (POPs), perfluoroalkyl substances (PFAS), and pesticide metabolites in wastewater
• Academic research: Stable-isotope dilution assays (SIDA), targeted lipidomics, and small-molecule pathway mapping

FAQ

Is this a fully refurbished and performance-verified system?
Yes. Each TQD undergoes comprehensive refurbishment including vacuum system rebuild, ion source cleaning and recalibration, detector replacement if required, and full system validation against Waters’ factory specifications.
Does it include original manufacturer software licenses?
Yes—MassLynx v4.1 with all quantitation modules (TargetLynx, QuanLynx, RADAR, etc.) is included with perpetual license and active support contract options.
Can it be integrated into an existing LIMS or ELN infrastructure?
Yes. MassLynx supports ODBC connectivity, direct LIMS interface via Waters’ OpenAccess API, and HL7/SOAP web services for automated result transfer.
What service and warranty options are available?
Standard offering includes 12-month comprehensive hardware and software warranty with remote diagnostics, on-site engineer dispatch, and priority parts logistics. Extended service plans include annual PM visits and uptime guarantees.
Is training provided for operators and IT staff?
Yes—Waters-certified instructors deliver on-site or virtual training covering instrument operation, method development, troubleshooting, and compliance documentation procedures.