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A Compact Quadrupole-Orbitrap Mass Spectrometer with FAIMS Interface Improves Proteome Coverage in Short LC Gradients

Open access
Bekker-Jensen, Dorte B., Martínez-Val, Ana, Steigerwald, Sophia, Rüther, Patrick, Fort, Kyle L., Arrey, Tabiwang N., Harder, Alexander, Makarov, Alexander, Olsen, Jesper V.·2020·Molecular & Cellular Proteomics

Abstract

State-of-the-art proteomics-grade mass spectrometers can measure peptide precursors and their fragments with ppm mass accuracy at sequencing speeds of tens of peptides per second with attomolar sensitivity. Here we describe a compact and robust quadrupole-orbitrap mass spectrometer equipped with a front-end High Field Asymmetric Waveform Ion Mobility Spectrometry (FAIMS) Interface. The performance of the Orbitrap Exploris 480 mass spectrometer is evaluated in data-dependent acquisition (DDA) and data-independent acquisition (DIA) modes in combination with FAIMS. We demonstrate that different compensation voltages (CVs) for FAIMS are optimal for DDA and DIA, respectively. Combining DIA with FAIMS using single CVs, the instrument surpasses 2500 peptides identified per minute. This enables quantification of >5000 proteins with short online LC gradients delivered by the Evosep One LC system allowing acquisition of 60 samples per day. The raw sensitivity of the instrument is evaluated by analyzing 5 ng of a HeLa digest from which >1000 proteins were reproducibly identified with 5 min LC gradients using DIA-FAIMS. To demonstrate the versatility of the instrument, we recorded an organ-wide map of proteome expression across 12 rat tissues quantified by tandem mass tags and label-free quantification using DIA with FAIMS to a depth of >10,000 proteins.

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Crossref · 10.1074/mcp.tir119.001906

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Metadata

Authors
Bekker-Jensen, D. B., Martínez-Val, A., Steigerwald, S., Rüther, P., Fort, K. L., Arrey, T. N., Harder, A., Makarov, A., & Olsen, J. V.
Venue
Molecular & Cellular Proteomics
Publisher
Elsevier BV
Published
2020-04
Volume
19
Issue
4
Pages
716-729
ISSN
1535-9476 (ISSN-L)
OpenAlex
W3005901855
Cited by
425
References
41
FWCI
21.55
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: A Compact Quadrupole-Orbitrap Mass Spectrometer with FAIMS Interface Improves Proteome Coverage in Short LC Gradients. https://app.cochat.ai/papers/10.1074/mcp.tir119.001906
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Bekker-Jensen, D. B., Martínez-Val, A., Steigerwald, S., Rüther, P., Fort, K. L., Arrey, T. N., Harder, A., Makarov, A., & Olsen, J. V. (2020). A Compact Quadrupole-Orbitrap Mass Spectrometer with FAIMS Interface Improves Proteome Coverage in Short LC Gradients. Molecular & Cellular Proteomics. https://doi.org/10.1074/mcp.tir119.001906

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