We used to do an interesting experiment in my teaching days to show how
fixatives work.
We used to take about a ml of egg white in narrow test tubes and add a whole
set of fixatives (alcohols, aldehydes, metal salts, organic acids)and follow
the increasing opacity of the denatured egg-white over time (the interface
of the two liquids would turn white first and then ...). It was a very
simple and effective demo of fixation of proteins.

> -----Original Message-----
> From: J. A. Kiernan []
> Sent: Tuesday, July 24, 2001 11:04 AM
> To: Connolly, Brett M
> Cc: 'HISTONET' (E-mail)
> Subject: Re: Zinc in fixa

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