High-Throughput Proteomics at Scale: Evosep Eno and Orbitrap Astral Zoom Advance n-DIA Performance
As proteomics studies continue to scale, the demands on analytical workflows are increasing.
Large clinical cohorts, systems biology projects, and high-content screening studies all depend on generating deep, quantitative, and reproducible proteomics data across thousands of samples, without sacrificing throughput or robustness.
A recent technical note from Thermo Fisher Scientific highlights how the combination of the Evosep Eno and the Orbitrap Astral Zoom Mass Spectrometer enables highly reproducible narrow-window DIA (nDIA) proteomics across workflows ranging from 30 to 500 samples per day (SPD).
Designed for High-Throughput Quantitative Proteomics
As throughput increases, maintaining quantitative precision becomes more challenging.
Short chromatographic gradients compress peptide elution into narrow time windows, requiring faster acquisition speeds and highly reproducible chromatography to preserve data quality.
The Evosep Eno was developed specifically for these demands, offering six standardized methods from 30 to 500 SPD designed to deliver:
- reproducible chromatography
- stable retention times
- standardized performance across laboratories
- simplified operation for large-scale studies
When paired with the Orbitrap Astral Zoom Mass Spectrometer and narrow-window DIA acquisition, the workflow demonstrated deep proteome coverage with strong quantitative precision across all throughput methods tested.
Optimized MS parameters
An important result from the work is a number of tables with optimized MS instrument parameters for the narrow-window data-independent acquisition method used. Many combinations of isolation window widths and Orbitrap/Astral injection times were tested and documented to select the highest performing combinations. These tables are readily available for everybody to benefit from.
Deep Proteome Coverage at 500 Samples Per Day
One of the most notable results from the study was the performance achieved at ultra-high throughput.
Using the standard 500 SPD Evosep Eno method, the workflow identified:
- more than 6,800 protein groups
- over 74,000 modified peptides
- from just 200 ng HeLa digest
with effective injection-to-injection cycle times of approximately 2.9 minutes.
Importantly, this depth was achieved while maintaining median protein coefficient of variation (CV) values below 5%.
The study also showed predictable depth-throughput tradeoffs across all six standardized Evosep methods, reaching more than 10,500 protein groups and 190,000 modified peptides using the 30 SPD workflow.
Reproducibility at Scale
For large-scale quantitative proteomics, throughput alone is not enough.
To evaluate chromatographic stability, nearly 100 consecutive LC-MS runs were performed at 500 SPD. Across these runs, peptide retention time variation remained below 0.4 seconds, highlighting the robustness and consistency of the workflow even at the highest throughput.
The study also demonstrated strong quantitative linearity across peptide concentrations ranging from attomolar to femtomolar levels, supporting confident quantitation within rapid chromatographic gradients.
Standardized Workflows for Scalable Proteomics
One of the key advantages of the Evosep Eno platform is its use of standardized methods.
Rather than requiring extensive optimization between studies, users can select predefined throughput methods aligned with their experimental goals. This simplifies implementation while reducing LC-related variability between runs, instruments, and laboratories.
As proteomics moves toward larger studies, and ultimately broader clinical adoption, this type of reproducibility and standardization becomes increasingly important.
Moving Toward Routine Large-Scale Proteomics
The combination of Evosep Eno and the Orbitrap Astral Zoom Mass Spectrometer demonstrates what modern high-throughput proteomics workflows can achieve: deep proteome coverage, robust quantitation, and reproducible chromatography at speeds compatible with large-scale studies.
As the field continues to evolve, workflows capable of balancing throughput, robustness, and quantitative performance will play an increasingly important role in translational research, systems biology, and future clinical proteomics applications.
Learn more about the Evosep Eno here https://www.evosep.com/evosep-eno/
