On Wed, 12 Feb 1997, Margaret A. Kuchenreuther wrote:
> Greetings Plant-Eders:
>> I need to attend to a number of preserved plant speciemens that are drying out,
> but I'm afraid I've lost my copy of the formula for the preservative FAA. I
> haven't had luck finding a published formula in the sources immediately at hand,
> so I'd be grateful if someone who routinely uses it could save me further search
> by posting a copy to me at kuchenma at caa.mrs.umn.edu.>> Your help is appreciated. I really value the storehouse of knowledge we have in
> this discussion group!
>> Margaret A. Kuchenreuther
> Assistant Professor of Biology
> Division of Science and Mathematics
> University of Minnesota - Morris
> Morris, MN 56267
>> Phone: (320) 589-6335 or -6300 (message)
> FAX: (320) 589-6371
> email: kuchenma at caa.mrs.umn.edu
Hey Margaret:
Here you go......The formula for "Formalin Acetic Acid" is
47.5% (v/v) ethanol
0.87M Glacial acetic acid
3.7% (v/v) formaldehyde
Hmmmmmm...."preserved plant specimens that are drying out," huh?? Are you
sure the cellular structure in your samples is intact? I have had some
very bad experiences with specimens kept in FAA for long periods. But,
that was involved in immunohistological localizations. I hope YOU have
better luck than I did!!
