---
title: "Buffer: research glossary | Sable Peptides"
description: "A buffer is a solution of a weak acid and its conjugate base, or a weak base and its conjugate acid, that resists changes in pH when small amounts of acid"
canonical: https://www.sablepeptides.co.uk/glossary/buffer
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Buffer

A buffer is a solution of a weak acid and its conjugate base, or a weak base and its conjugate acid, that resists changes in pH when small amounts of acid or base are added. Choosing a buffer with an appropriate pH and composition helps keep peptides soluble and stable in solution.

Source: [en.wikipedia.org](https://en.wikipedia.org/wiki/Buffer_solution)

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