---
title: "Mass resolution: research glossary | Sable Peptides"
description: "Mass resolution, or resolving power, describes a mass spectrometer's ability to distinguish ions of slightly different m/z. It is often expressed as m/Δm a"
canonical: https://www.sablepeptides.co.uk/glossary/mass-resolution
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Mass resolution

Mass resolution, or resolving power, describes a mass spectrometer's ability to distinguish ions of slightly different m/z. It is often expressed as m/Δm at a given peak. High resolution allows isotopic peaks of multiply charged peptides to be separated and closely related species to be distinguished.

Source: [en.wikipedia.org](https://en.wikipedia.org/wiki/Resolution_\(mass_spectrometry\))

## Related terms

-   [Resolution](/glossary/resolution)

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