You can oxidize it with potassium permanganate. It can use used immediately
(maybe a half hour of mixing), but works better if allowed to set overnight.
It will remain good for about a year.
In the School, I like to make up a batch, and have the students oxidize part
of it with the potassium perma
Carol,
You may want to reconsider using PTAH for fibrin as the fixative of choice
is Zenkers or after formalin fixation, a Zenkers postfixation/mordanting, a
mercury fixative. I don't think you will want to mess with mercury
disposal. One can speed up ripening time of PTAH by adding potassiu
