Re this thread on buffering: cacodylate buffering is frequently used
with glutaraldehyde for electron microscopy. Nobody ever seems to
mention it, but cacodylate (cacodylic acid) contains organic arsenic,
and is extremely toxic. See
What precautions are advisable in handling it? Is it permitted in a
I've been reading about a procedure that may require it - will post
more information if I receive it from the author.
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