Waters ACQUITY RDa Mass Spectrometer Detector
| Brand | Waters |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | ACQUITY RDa Detector |
| Pricing | Available Upon Request |
Overview
The Waters ACQUITY™ RDa™ Mass Spectrometer Detector is a compact, high-performance time-of-flight (TOF) mass spectrometer engineered for routine small-molecule analysis in regulated and research laboratories. As the latest addition to Waters’ TOF MS portfolio, the RDa detector integrates orthogonal acceleration TOF technology with robust quadrupole-based ion transmission, delivering high mass accuracy ( 15,000 FWHM at m/z 556), and consistent sensitivity across wide dynamic ranges. Designed specifically for seamless coupling with the ACQUITY UPLC™ I-Class PLUS system—optionally equipped with TUV or PDA detectors—the RDa forms a fully integrated LC-MS platform optimized for precise molecular weight determination, structural elucidation, and quantitative screening. Its architecture supports both electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI), enabling reliable detection of polar, semi-polar, and moderately non-polar analytes without method re-optimization.
Key Features
- Compact benchtop footprint (60 cm × 50 cm × 45 cm) with minimized utility requirements—no external chiller or high-capacity vacuum pump needed.
- SmartMS™ software-driven operation featuring automated system health monitoring, real-time diagnostic alerts, and guided calibration workflows.
- Embedded “Customer Intelligence Workflows” for common small-molecule applications—including impurity profiling, forced degradation studies, lipidomics, natural product characterization, food contaminant screening, and toxicology assays.
- Robust ion optics and temperature-stabilized flight tube ensure long-term signal stability and inter-day reproducibility (RSD < 5% for peak area over 72 h).
- Integrated hardware-level lockmass correction using internal reference ions (e.g., leucine enkephalin) for continuous mass recalibration during acquisition.
Sample Compatibility & Compliance
The ACQUITY RDa detector supports direct infusion, flow injection, and full LC-MS coupling with sub-2-µm particle UPLC columns. It accommodates standard 96-well and 384-well plate formats via optional autosampler integration. All hardware and firmware comply with IEC 61010-1 (safety) and EN 61326-1 (EMC). The system meets key regulatory expectations for analytical instrumentation used in GLP, GMP, and ISO/IEC 17025 environments: role-based user access control, electronic signatures, full audit trail (including method creation, parameter changes, and data reprocessing), and secure data storage per FDA 21 CFR Part 11 and EU Annex 11 requirements—all enforced through the waters_connect™ software platform.
Software & Data Management
Controlled exclusively via waters_connect™—Waters’ enterprise-grade chromatography and mass spectrometry data system—the RDa platform provides centralized instrument management, method lifecycle tracking, and automated report generation. The software includes built-in SmartMS modules for automatic peak detection, formula prediction (with isotopic pattern matching), and comparative spectral analysis. Raw data files (.raw) are stored in a vendor-neutral, open-format structure compliant with mzML 1.1 standards. Audit trails record every user action—including login/logout timestamps, parameter edits, and processing steps—with immutable hash-verified logs exportable for internal audits or regulatory submissions.
Applications
The ACQUITY RDa excels in targeted and untargeted small-molecule workflows requiring high mass fidelity and operational simplicity. Typical use cases include: identification and quantification of synthetic impurities per ICH Q3A–Q3D guidelines; characterization of degradation products under stress conditions (oxidative, thermal, acidic); rapid lipid class assignment and relative quantitation in biological extracts; dereplication of bioactive compounds from plant or microbial sources; screening of mycotoxins, pesticide residues, veterinary drug markers, and adulterants in food and feed matrices; and confirmation of molecular formulas in forensic toxicology and doping control laboratories. Its workflow-centric design reduces method development time by up to 40% compared to traditional TOF platforms.
FAQ
Is the ACQUITY RDa compatible with third-party LC systems?
Yes—via analog voltage output and standard RS-232/USB interfaces—but full SmartMS functionality and synchronized acquisition require native integration with ACQUITY UPLC systems.
Does the RDa support tandem MS (MS/MS) experiments?
No—it is a single-stage TOF detector optimized for high-resolution accurate-mass (HRAM) acquisition; for fragmentation studies, Waters recommends coupling with Xevo® or Vion™ platforms.
Can raw data be reprocessed using different parameters after acquisition?
Yes—waters_connect enables retrospective data reprocessing with updated calibration tables, peak integration rules, and formula filters without reacquiring samples.
What validation documentation is provided for regulated labs?
Waters supplies IQ/OQ documentation templates, system suitability test protocols, and electronic verification reports aligned with ASTM E2500 and USP guidelines.
Is remote monitoring supported?
Yes—through waters_connect’s web-enabled dashboard, authorized users can monitor instrument status, queue progress, and receive email/SNMP alerts for critical events.
