Advanced Acquisition Modes for the Xevo MRT P10 Mass Spectrometer

Advanced Acquisition Modes for the Xevo MRT P10 Mass Spectrometer — Expert Summary

Importance of the topic

The evolving needs of multiomics research and high-sensitivity quantitative workflows require mass spectrometers that combine deep discovery capabilities with robust targeted quantification. Advanced acquisition modes such as SONAR Pulse (a data-independent acquisition, DIA, approach) and mixed hybrid acquisition (integrating time-of-flight multiple reaction monitoring, Tof MRM, with DIA/MSE) increase detectability of low-abundance analytes, reduce the risk of missed identifications, and enable simultaneous qualitative and quantitative analysis from a single injection. Enhancing MS/MS sensitivity and acquisition speed directly benefits biomarker discovery, targeted validation, clinical and environmental trace analysis, and high-throughput regulated assays.

Objectives and overview of the article

This solution sheet describes the advanced acquisition capabilities of the Waters Xevo MRT P10 Mass Spectrometer, highlighting how SONAR Pulse and mixed-mode acquisition expand analytical depth, increase MS/MS sensitivity (reported up to 20× over prior generation across m/z 50–1200), and support ultrafast acquisition (100 Hz MS; up to 200 Hz MS/MS). The document outlines working principles, configurable parameters, workflow integration, informatics compatibility, and the anticipated practical benefits for multiomics and hybrid targeted/untargeted experiments.

Used methodology and instrumentation

Key instrument features and acquisition strategies described:

- Instrument platform: Waters Xevo MRT P10 Time-of-Flight (Tof) mass spectrometer, deployed with ACQUITY Premier LC system and Waters software environment (UNIFI, waters_connect MS Quan).
- Sensitivity enhancements: Wideband Enhanced Duty Cycle (WB EDC) to boost MS/MS sensitivity across a broad m/z range at high scan rates.
- SONAR Pulse (DIA) mode: Sequential rapid stepping of a defined quadrupole isolation window across a precursor m/z range to collect high-specificity MS/MS spectra while maintaining DIA throughput.
- Mixed/hybrid mode: Concurrent acquisition of Tof MRM transitions for targeted quantification together with MSE (untargeted DIA) for discovery in one injection, leveraging fast MS1 selection and EDC to preserve sensitivity and linearity.
- Acquisition performance: MS full-scan up to 100 Hz; MS/MS and DDA up to 200 Hz; SONAR options include quadrupole windows of 2, 5, 10, 25 Da, MS/MS scan speeds of 20–200 Hz, and precursor/product m/z up to 2000.
- Data handling: Export to mzML for compatibility with open-source and commercial informatics (DIA-NN, PEAKS, mzMine, MS-DIAL, Progenesis QI, MARS, Lipostar, MassMetasite, etc.), and native integration with waters_connect MS Quan and UNIFI for combined quant–qual workflows.

Main results and discussion

- Sensitivity and depth: The combination of WB EDC and optimized acquisition algorithms yields a reported ~20× improvement in MS/MS sensitivity versus the prior Xevo MRT generation across m/z 50–1200, enabling confident detection of low-abundance species.
- SONAR Pulse benefits: By stepping a resolving quadrupole window across a specified mass range, SONAR Pulse increases MS/MS selectivity and reduces spectral complexity versus conventional DIA, improving confidence in fragment-to-precursor assignment and lowering the risk of missing low-level components that DDA might omit.
- Mixed mode benefits: Simultaneous Tof MRM and MSE acquisition supports quantification with TQ-like sensitivity and linearity while retaining discovery capacity from DIA data—allowing full characterization, screening, and targeted measurement from a single injection without significant compromise to either function.
- Throughput and flexibility: Ultrafast scan rates (up to 200 Hz for MS/MS) permit collection of multiple targeted transitions and dense DIA windows in chromatographic peak widths typical of modern LC methods, supporting high-throughput studies and complex sample matrices.

Key practical observations (from figures and workflow summaries):

- SONAR Pulse provides configurable window widths and scan rates to trade off selectivity vs. coverage depending on application needs.
- Mixed mode workflows route discovery data to UNIFI/Progenesis QI and export quantitation-ready data to waters_connect MS Quan or mzML for external processing, enabling flexible pipeline integration.

Benefits and practical applications of the methods

- Single-injection quantitation and identification: Reduces sample consumption and analysis time by capturing high-quality MS/MS spectra and targeted transitions in one run.
- Improved detection of low-abundance analytes: Higher MS/MS sensitivity and narrowed quadrupole windows help reveal minor components in complex biological or environmental matrices.
- Reduced spectral complexity: SONAR Pulse’s sequential windowing simplifies fragment spectra relative to wide-window DIA, easing interpretation and improving library matching or deconvolution outcomes.
- Integration with established workflows: mzML export and compatibility with a wide range of informatics tools facilitate adoption in labs using open-source or third-party software; waters_connect and UNIFI provide native quantified and discovery workflows for regulated and research environments.

Practical use cases

- Multiomics discovery (proteomics, metabolomics, lipidomics): Deep coverage of sample composition while retaining the option for targeted follow-up.
- Biomarker discovery to targeted verification pipelines: Use SONAR Pulse to discover candidate features, then apply Tof MRM in mixed mode for sensitive quantitation.
- Clinical and regulated assays: Tof MRM with EDC can approach TQ-like performance for assays requiring linearity and sensitivity, with the advantage of simultaneous full-scan data for retrospective review.
- Environmental and forensic trace analysis: Enhanced low-level detection and confident fragment assignment support trustworthy identifications in complex backgrounds.

Future trends and potential applications

- Informatics integration and automation: Broader adoption will be accelerated by improved pipelines for automatic library building, AI-driven deconvolution of complex DIA spectra, and cloud-native processing of mzML datasets.
- Higher degrees of hybridization: Expect further convergence of targeted and untargeted acquisition paradigms (e.g., adaptive experiment designs where discovery informs real-time targeted acquisition).
- Standardization and interoperability: Wider standardization of DIA window schemes, reporting formats, and cross-vendor compatibility will facilitate multi-lab studies and longitudinal cohorts.
- Increased throughput with maintainable sensitivity: Continued optimization of duty cycles and detector electronics could enable even higher scan rates without sensitivity loss, supporting ultra-high-throughput screening.

Conclusion

The Xevo MRT P10’s SONAR Pulse and mixed-mode acquisition strategies significantly extend analytical flexibility by delivering both deep discovery-grade MS/MS coverage and high-sensitivity targeted quantification from single injections. WB EDC and high scan speeds underpin a substantial sensitivity gain and support complex hybrid workflows across multiomics, clinical, environmental, and pharmaceutical applications. Combined with mzML export and broad informatics compatibility, these acquisition modes provide practical, integrative solutions for labs seeking to unify discovery and targeted pipelines while maximizing information per sample.

Used Instrumentation

- Waters Xevo MRT P10 Mass Spectrometer (Tof) with Wideband Enhanced Duty Cycle (WB EDC)
- Waters ACQUITY Premier chromatography system
- Software: UNIFI (untargeted screening), waters_connect MS Quan (Tof MRM quantification)
- Data export: mzML file format for downstream processing in DIA-NN, PEAKS, mzMine, MS-DIAL, Progenesis QI, MARS, Lipostar, MassMetasite, etc.

References

- DIA-NN (software)
- PEAKS (software)
- mzMine (software)
- MS-DIAL (software)
- Progenesis QI (software)
- MARS, Lipostar2, MassMetasite (commercial informatics)