Ponceau S staining problem...

Neal Robert Melvin nrmelvin at ucalgary.ca
Thu Nov 30 13:23:33 EST 2000

Something I've always wondered... why is a water wash ok?? I mean, isn't
it important that you keep the pH stable for the proteins on the

"The most beautiful thing we can experience is the mysterious. It is the
source of all true art and science"
-- Albert Einstein

Neal Melvin
University of Calgary - Faculty of Medicine
Department of Neuroscience - Neuroscience Research Group (NRG)
Health Sciences Centre
3330 Hospital Drive, NW
Calgary, Alberta, Canada
T2N 4N1

e-mail: nrmelvin at ucalgary.ca
Phone: (403) 220-4490 (lab)
       (403) 220-7035 (office)
       (403) 283-8731 (fax)

On 30 Nov 2000, Louis Hom wrote:

> I second the comment on making sure SDS is gone.  I usually rinse my blots 
> a few times in water, then rock for a few minutes in water just to make 
> sure the SDS is gone (on my immobilon, the sheeting vs beading of the 
> water changes).  I then stain using 0.1% (w/v) Ponceau S in 5% HOAc.
> -- 
> ______________________________________________________________________________
> Lou Hom >K'93			     
> lhom at ocf.berkeley.edu		
> http://www.ocf.berkeley.edu/~lhom/ 	    

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