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fresh APS (former SDS-PAGE)

R. John Lye rjl6n at uva.pcmail.virginia.edu
Fri Dec 8 07:29:57 EST 1995

Mark_Solomon at QM.Yale.edu (Mark Solomon) wrote:

>Just to add to the controversy here:  I simply keep a 10% APS stock
>in the fridge.  It's good for well over a year (until it runs out!).  >Whenever it seems to be weakening a bit (based on time to >polymerization) I just up the amount I use (to a maximum of no more
>than 1.5 x normal).  Most folks in the two labs I've worked in as well >as in my own lab work this way, oblivious to the good old daily >snap-crackle-and-pop approach.  Just pay attention to how long gels
>take to polymerize and you won't be caught off guard one day with >suddenly "bad" APS.

I'll second this - I've been storing 10% APS in the fridge for
years and it seems to be fine for at least a year.

John Lye

rjl6n at uva.pcmail.Virginia.EDU

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