Trisha-
You could try 0.1M glycine in Tris for 20 minutes.
Good luck-
Lorraine

On Thu, 10 Aug 2000, P. Emry wrote:

> Hi all,
> 
> I have a postdoc using sodium borohydride to reduce background in
> fluorescent brain sections.  Is there a substitute that can be used or a
> protocol that does the same thing but does not use this hazardous
> material?
> 
> Thanks for your help.
> 
> Trisha  Emry
> U of Washington, Seattle
> 
> 
>