"Expiration" of proprietary glass binding resins?

Jim Graham graham at biodec.wustl.edu_nospammmmmmm
Thu Jul 23 10:22:41 EST 1998

>I don't know what's in QIAGEN's reagent, but we sell a gel-extraction 
>kit that contains a light-sensitive reagent that will go off over time.  

Is this light sensitive componenet an aspect of the binding resin or the
buffer solutions?



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