Buffer for lyophylization

[Lipid Research Laboratory]

Michael DiDonato wrote:
> 
> I am wondering if anyone knows which is the best buffer to lyophylize from?
> Excluding water, what buffer would leave beind the least amount of salt
> upon lyophylization?
> 
> Any suggestions are extremely appreciated.
> 
> Mike
> 
> --
> Michael DiDonato
> Department of Biochemistry Research
> Hospital for Sick Children
> Toronto, Ontario, Canada
> michael.didonato at utoronto.ca

I use routinely ammonium bicarbonate. Before the lyophilization step the
protein sample is dialyzed against ammonium bicarbonate (25 mM usually).
Also, I add 0.1% 2-mercaptoethanol in the buffer.

Philippe Marmillot
George Washington University
Lipid Research - VA medical Center
50 Irving Street NW
Washington, DC 20422