Hi all,

I am studying to take the HTL certification test and ran across a reference to 
Formalin Ammonium Bromide.  I see that it is very good for central nervous 
tissue fixation, it must be made fresh and that its pH is 1.5.  Does anyone 
happen to know the reason for ammonium bromide in this fixative?  I have been 
looking online and this has not been explained.

Also, has anyone taken this test lately?  I am curious as to how much old 
techniques, such as mercuric fixatives will be included?

Thank you,

Katherine S Walters
Histology Director

Central Microscopy Research Facility
University of Iowa
76 Eckstein Medical Research Building
431 Newton Road
Iowa City, Iowa 52242

319-335-8142

Facility Website:
http://cmrf.research.uiowa.edu/



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