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Topic: Dialysis purification of ions  (Read 2541 times)

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Offline Reddart

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Dialysis purification of ions
« on: July 06, 2016, 06:11:05 PM »
I have a polymer I am trying to remove as many stray ions as possible. I can use anionic ion exchange resin to remove some impurities, but unfortunately the polymer sticks to cationic ion exchange resin, so I cant use those for metal cation removal.

Has anyone used membranes to purify ions out of polymers (or large protiens)?

I was thinking about using these types of bottles: https://www.thermofisher.com/us/en/home/life-science/protein-biology/protein-purification-isolation/protein-dialysis-desalting-concentration/dialysis-products.html#product-list-table

Offline Arkcon

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Re: Dialysis purification of ions
« Reply #1 on: July 06, 2016, 06:34:22 PM »
Any of those work for large bio molecules.  What's the nature of your polymer?  You'll have to know the MW range, and charge properties to select the proper dialysis membrane.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

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