Dr. Duncan Clark
Duncan at nospam.demon.co.uk
Tue Jan 30 05:43:21 EST 2001
In article <3A75A624.8FDD7136 at med.unc.edu>, the eminent Stephen Snowdy
at UNC Gene Therapy Center wrote
>When a protocol calls for say, 0.1% NP-40, does this mean 0.1% of the
>10% solution (i.e. pretending the stock solution is 100%), or 0.1%
>taking into account that the stock is 10%?
Protocols should really say 0.1% (v/v) which therefore would be 0.1ml
per 100ml of solution. Whenever they just say 0.1% it has to be 0.1%
(v/v) or that is what I assume :-)
The problem with being on the cutting edge is that you occasionally get
sliced from time to time....
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