ultrafiltration to v. small volume

[Danny Chamovitz]

I've used Filtron devices with a 10k and 3k cutoff.  They usually work very
well, though at very low protein concentraions, I tend to lose alot of my
material.  This could be a specific probelm of my protein though.  If you need
to concentrate for poading on a gel, startagen makes a resin that specifically
binds proteins (sort of like glass milk for proteins) which works exceptionally
well.

Good luck!

Danny
-- 
________________________________________________________________________________

Daniel Chamovitz				tel: 203-432-8909
Department of Biology				fax: 203-432-3854
Yale University
P.O.Box 208104				   home tel: 203-776-3474
New Haven, CT 06520-8104


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