Peptide in solution

[Paul J. Phelan]

I would concentrate the peptide in a "Speed-vac": you freeze it and 
then put it in a centrifuge under vacuum, the solvent will evaporate, 
but the PBS salts will be concentrated along with the peptide.  
Otherwise, you could lyophilize the peptide and re-dissolve it with 
H2O, to whatever volume you like.

Quoting Yvonne Couch <yvonne.couch from pharm.ox.ac.uk>:

> I have a peptide dissolved in PBS at 1mg/ml, I want to concentrate it, is it
> possible to get the peptide out of solution in order to concentrate it?
>
> Cheers
>
> Yvonne
>
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