Waters ACQUITY QDa II Mass Detector
| Brand | Waters |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | ACQUITY QDa II Mass Detector |
| Price | Upon Request |
| Instrument Type | Single Quadrupole Mass Spectrometer |
Overview
The Waters ACQUITY QDa II Mass Detector is a compact, benchtop single quadrupole mass spectrometer engineered for seamless integration with ultra-high-performance liquid chromatography (UHPLC) systems. It operates on the principle of atmospheric pressure ionization—specifically electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI)—to deliver accurate mass detection across small molecules, peptides, oligonucleotides, and synthetic intermediates. Unlike traditional high-end tandem quadrupole or time-of-flight instruments, the QDa II is purpose-built for routine QC/QA environments where robustness, ease of use, and regulatory readiness outweigh the need for advanced fragmentation or high-resolution capabilities. Its design emphasizes operational continuity: no daily tuning, no vacuum pump maintenance, and minimal operator intervention—making it ideal for laboratories requiring consistent, trace-level compound identification without the complexity or cost overhead of research-grade MS platforms.
Key Features
- Compact, stackable architecture reduces footprint by up to 50% versus conventional LC-MS systems—enabling deployment in space-constrained QC labs without dedicated instrument rooms.
- Pre-optimized ion source and detector electronics ensure stable signal response across diverse analyte classes (polar/non-polar, acidic/basic), eliminating method-specific source tuning.
- Low-power consumption design certified under My Green Lab’s ACT Label—reducing energy use and heat output by up to 70% compared to legacy single-quadrupole detectors.
- Integrated thermal management and solid-state vacuum system eliminate oil-based rotary vane pumps, lowering maintenance frequency and extending mean time between failures (MTBF).
- Fully compatible with Waters Empower 3 and Empower 4 Chromatography Data Systems (CDS), supporting 21 CFR Part 11 compliance via electronic signatures, audit trails, and role-based access control.
Sample Compatibility & Compliance
The QDa II supports broad sample compatibility—from low-MW pharmaceutical actives (<200 Da) to intact mAbs and ADCs (up to ~150 kDa) when coupled with appropriate LC separation conditions. It meets critical regulatory expectations for routine analysis workflows: data integrity aligns with ALCOA+ principles; raw data files are immutable and timestamped; and system suitability testing (SST) parameters—including mass accuracy (±0.2 Da), retention time stability (RSD < 0.5%), and peak area repeatability (RSD < 3%)—are fully configurable and reportable within Empower. The instrument complies with ISO/IEC 17025 requirements for testing laboratories and supports GLP/GMP-aligned validation protocols (IQ/OQ/PQ) out-of-the-box.
Software & Data Management
The QDa II leverages Waters’ AQbD (Analytical Quality by Design) software suite to accelerate method development and risk-based parameter optimization. Built-in peak tracking algorithms correlate UV and MS signals in real time, enabling automatic purity assessment and co-elution flagging during acquisition. All spectral and chromatographic data are stored in vendor-neutral .raw format, with metadata embedded per ICH M7 and USP guidelines. Empower CDS provides full lifecycle data management—including version-controlled method archiving, electronic lab notebook (ELN) integration, and automated report generation compliant with FDA, EMA, and PMDA submission standards.
Applications
- Pharmaceutical QC: Identity confirmation of APIs, impurity profiling, and residual solvent quantitation per ICH Q2(R2) and USP .
- Biopharmaceutical characterization: Intact mass verification of monoclonal antibodies, peptide mapping support, and excipient interaction screening.
- Environmental analysis: Detection of emerging contaminants (e.g., PFAS, microplastics leachates) at sub-ppb levels in water matrices.
- Food safety: Rapid screening of mycotoxins, pesticide residues, and adulterants using targeted single-ion monitoring (SIM) methods.
- Materials science: Structural verification of novel polymers, catalysts, and MOF precursors during synthesis optimization.
FAQ
Is the QDa II suitable for regulated GMP environments?
Yes—the system is validated-ready and fully supports 21 CFR Part 11, Annex 11, and ISO 13485 requirements through Empower CDS audit trails, electronic signatures, and secure user authentication.
Does it require daily calibration or tuning?
No—factory-calibrated mass axis and ion optics eliminate routine recalibration; only periodic SST verification is required per internal SOPs.
Can it be integrated with non-Waters UHPLC systems?
Yes—via analog/digital I/O and standard RS-232/USB interfaces; however, full Empower synchronization and intelligent peak correlation are optimized for ACQUITY UPLC platforms.
What maintenance intervals are recommended?
Source cleaning every 2–4 weeks depending on sample load; detector and vacuum system service annually or after 10,000 runs—documented in the included Preventive Maintenance Log.
Is FlexUP upgrade path available globally?
Yes—FlexUP is offered in all regions where Waters maintains direct service agreements, providing hardware/software refresh options without full system replacement.
