Fisher Taq shipped on dry ice
todd at andrew2.stanford.edu
Thu Feb 8 11:03:58 EST 2001
In article <95udqn$6c7$1 at news.fsu.edu>, "Ken Soderstrom"
<soderstrom at psy.fsu.edu> wrote:
> I just got 100U of Taq from Fisher that arrived frozen solid on dry ice.
> I'm worried about the effect of freezing on its activity. I hate to
> my time proving to Fisher that this is a bad idea. Their tech support
> claims that this is thier standard shipping method which doesn't seem
> Does anyone out there know if its OK to freeze Taq.
That's the standard way we store Taq for long-term storage. It's a bad
idea to freeze Taq polymerase during the purification process, but once
it's in 50% glycerol (storage buffer) it's fine for several years.
Dr. Todd Richmond
Carnegie Insitution, Dept of Plant Biology
260 Panama Street
Stanford, CA 94305
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