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Fixing sequencing gels

Brandon S Johnson johnsbs at mail.auburn.edu
Sat Jul 30 17:23:01 EST 1994

with the : > gel sticking to the film!!
: > 
: > This may be because he dried the gels very well or low local humidity.
: > I guess it's something to test yourself.
: > 
: > All in all he was pretty happy with it.
: > 
: > Cheers,
: >   Chris
: > 
X-Newsreader: TIN [version 1.2 PL2]

: Chris-
: I never fix my sequencing gels.  You can not use Saran Wrap between
: the film and the gel as S35 is too weak to penetrate the plastic.  
: I dry my gels at 80C for two hours.  Normally this is fine.  
: When the humidity get up here, though, (around 40% :) )the film
: does tend to stick somewhat.  This doesn't bother me too much as
: I can still read the sequence without a problem.  

: Tony Meyn
: University of Arizona


I have used this technique successfully "way down south" where humidity 
is oppressive, about 85% right now.  I've found that "Cling Wrap" works 
immensly (sp?) better than "Saran Wrap" - don't know why.  I put the gel 
on filter paper, cover with Cling, and dry 2 hours at 80C.  The Cling 
pulls off with no problems - never had a problem with sticking.  Peace...

Brandon Johnson
johnsbs at mail.auburn.edu

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