Freeze Dryer vs Speed Vac

Greg Pankhurst g.pankhurst at cfi.unsw.edu.au
Tue Mar 25 00:55:23 EST 2003


Hey All

Just wanted to canvas opinions on the advantages of using a Freeze Dryer
to dry proteins down over using a Speed Vac.

My understanding was that the solid -> gas transition was gentler than
the liquid -> gas transition, and thus you were far less likely to see
things like oxidation occuring with a freeze dryer. Is this about right
or am I miles away ??

Thanx in Advance
Greg Pankhurst



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