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Oligo degradation trepidation

J. David Spafford jspaffor at gpu.srv.ualberta.ca
Tue Jul 26 17:58:38 EST 1994

>: Is this for real????  Anybody got any hard evidence?  Do I worry about my 
>: -20 degree stored oligos (which probably amount to more than a years worth of

>: my salary)!  Does anyone have a good reason why oligos might "go off" at -20,

>: but not at -70 degrees?  Is anyone form Operon out there...?   
>: Appreciate  any comments,

I keep my original stocks at -70 oC and working solutions at 4 oC (if I am
using them regularly).  Some people suggest that the freeze-thaw of -70 oC
is harder on oligos than if original stocks are kept at -20 oC.  Comments? 
J. David Spafford
Department of Biological Sciences, University of Alberta
jspaffor at gpu.srv.ualberta.ca

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