Message to anyone from Promega further info

Martin Leach leach at mbcrr.harvard.edu
Fri Jan 21 04:34:56 EST 1994


In article <2ho4po$ho0 at mserv1.dl.ac.uk>, (David Johnston) daj
<daj at nhm.ic.ac.uk> wrote:

 
> By chance, I had a UK Promega Rep call yesterday, so I discussed the flak 
> they were getting re. Wizards. One comment he made was that in the old 
> style magic preps, if you applied too fierce a vacuum to the columns, you 
> got leakage of resin and guanidine around the edge of the "frit" which 
> could cause problems. the Wizard columns are supposed to have been 
> redesigned to improve matters but too vigorous a suck can still cause 
> leakage. I don't know if this comment helps but I thought I would pass it 
> on.
> 


Many people do not have the vacuum manifold, and rely on brute force
(syringes).
We and many others have not changed the application pressure so i don't
think this could be a major problem.

another shot in the dark


-- 

.....          Martin Leach                Email:leach at mbcrr.harvard.edu 
   _|____      Dept. of Pharmacology       Phone: (617) 638-5323        
   / o  /      Boston Univ. School of Med. Fax:   (617) 638-4329         
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