In article <36E68937.28C6 at dogwood.botany.uga.edu>, Mark Warner
<mwarner at dogwood.botany.uga.edu> wrote:
> To all, I'm trying out a new RNA extraction buffer that contains Tris
> (0.2M), sodium perchlorate (8M)(pH 8.3) and SDS (2%), but the SDS comes
> out of solution and I can't seem to resolubilize it. I know this can
> happen with other buffers, and usually mild heat will do the trick, but
> it doessn't work. Any ideas?
Maybe switch to sarkosyl as that is more salt and pH tolerant
(pH 8 and 8 M sounds somewhat out of the range for SDS).
Bernard P. Murray, PhD
Dept. Cell. Mol. Pharmacol., UCSF, San Francisco, USA