---
title: "Mass concentration: research glossary | Sable Peptides"
description: "Mass concentration is the mass of a solute divided by the volume of the solution, commonly expressed in mg/mL or µg/mL in peptide work. It can be converted"
canonical: https://www.sablepeptides.co.uk/glossary/mass-concentration
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Mass concentration

Mass concentration is the mass of a solute divided by the volume of the solution, commonly expressed in mg/mL or µg/mL in peptide work. It can be converted to molar concentration by dividing by molecular weight. Mass concentration is convenient when molecular weight is uncertain, such as with heterogeneous or PEGylated materials.

Source: [en.wikipedia.org](https://en.wikipedia.org/wiki/Mass_concentration_\(chemistry\))

## Related terms

-   [Peptide](/glossary/peptide)
-   [Molecular weight](/glossary/molecular-weight)

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