---
title: "Ultrapure water: research glossary | Sable Peptides"
description: "Ultrapure water is water purified to very low levels of ions, organic carbon, particles and microorganisms, typically with a resistivity of 18.2 MΩ·cm at 2"
canonical: https://www.sablepeptides.co.uk/glossary/ultrapure-water
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Ultrapure water

Ultrapure water is water purified to very low levels of ions, organic carbon, particles and microorganisms, typically with a resistivity of 18.2 MΩ·cm at 25 °C. It is used to prepare HPLC mobile phases, buffers and peptide solutions, because contaminants can create ghost peaks, adducts in mass spectra or assay interference.

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

## Related terms

-   [Peptide](/glossary/peptide)

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