---
title: "Area percent purity: research glossary | Sable Peptides"
description: "Area percent purity is a purity value calculated by dividing the peak area of the target compound by the sum of all peak areas in a chromatogram and multip"
canonical: https://www.sablepeptides.co.uk/glossary/area-percent-purity
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Area percent purity

Area percent purity is a purity value calculated by dividing the peak area of the target compound by the sum of all peak areas in a chromatogram and multiplying by 100. It assumes similar detector response for all components. For peptides, UV detection at 214 to 220 nm, where peptide bonds absorb, makes this assumption reasonable.

Source: [peptalis.eu](https://peptalis.eu/en/insights/hplc-purity-versus-peptide-content)

## Related terms

-   [Peptide](/glossary/peptide)
-   [Chromatogram](/glossary/chromatogram)
-   [Peak area](/glossary/peak-area)

[Back to glossary A–Z](/glossary/terms)

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