---
title: "Protein Purification on the Opentrons Flex®: Comparing Vacuum Filtration to Magnetic Blocks"
description: Compare vacuum filtration and magnetic beads for protein purification on the Opentrons Flex. Download the free app note for yield, purity, and cost data.
---

[![TM-opentrons-full-whitecolor](https://insights.opentrons.com/hs-fs/hubfs/TM-opentrons-full-whitecolor.png?width=200&height=47&name=TM-opentrons-full-whitecolor.png "TM-opentrons-full-whitecolor")](https://opentrons.com)

# Protein Purification, Automated

##### Not sure whether to purify with vacuum filtration or magnetic beads? Our free application note puts both automated methods head to head on the Opentrons Flex. Discover how they compare on purity, yield, reproducibility, and cost, including a vacuum method that costs less than half as much per sample and recovers 50 to 70 minutes of hands-on time. Download now to streamline your protein purification!

![protein-purification-app-note-cover](https://insights.opentrons.com/hs-fs/hubfs/protein-purification-app-note-cover.png?width=300&height=385&name=protein-purification-app-note-cover.png)

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