Hi Ben:

Do you mean rate of penetration, speed of fixation or the actual 
concentration of formaldehyde in the solution?
Remember, formaldehyde penetrates tissue rapidly BUT fixes tissue slowly.

Geoff

Ben Spirto wrote:
> How can I measure the strength of 4 % paraformaldehide? It seems that our
> lab made 4% para does not adequately penetrate the brain tissue. Any
> suggestions?
> _______________________________________________
> Histonet mailing list
> Histonet@lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
>
>
>   


-- 
--
**********************************************
Geoff McAuliffe, Ph.D.
Neuroscience and Cell Biology
Robert Wood Johnson Medical School
675 Hoes Lane, Piscataway, NJ 08854
voice: (732)-235-4583 
mcauliff@umdnj.edu
**********************************************



_______________________________________________
Histonet mailing list
Histonet@lists.utsouthwestern.edu
http://lists.utsouthwestern.edu/mailman/listinfo/histonet