---
title: "Diode array detector: research glossary | Sable Peptides"
description: "A diode array detector (DAD), or photodiode array detector, records the full UV-visible absorbance spectrum of eluting compounds simultaneously. This allow"
canonical: https://www.sablepeptides.co.uk/glossary/diode-array-detector
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Diode array detector

A diode array detector (DAD), or photodiode array detector, records the full UV-visible absorbance spectrum of eluting compounds simultaneously. This allows peak purity assessment by comparing spectra across a peak and retrospective selection of the best detection wavelength, which is useful for peptides with chromophores or modifications.

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

## Related terms

-   [Absorbance](/glossary/absorbance)

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