I've noticed that PHA loses its effectiveness over time once it's been
reconstituted. How old is your stock when you notice the problems?
Paula Lavery
Transplant Immunology Lab.
Royal Victoria Hospital
McGill University
Montreal (QC) Canada
"If we knew what we were doing it wouldn't be called research, would it?"
-- Albert Einstein
pjoseph at osucom-fs02.osu-com.okstate.edu wrote in message
<3820b03b.459604466 at news.okstate.edu>...
>The "purified" PHA from Sigma has been of variable mitogenic
>activiity.
>>What is a better source and how to contact them??
>>Thanks.
>>J Price
