From: antonio regla (areglac$##$yahoo.com)
Date: Wed Feb 16 2000 - 11:29:08 EST
Dear Jonas:
I've been following the elemental analysis
developments and all the ideas sound like interesting
possibilities. I don't know if by this time you have
the answer to the problem, but I thought I might
contribute my grain of sand to a possible solution.
Water and organic solvents are the first things that
come to mind to most chemists as being culprits for
problems with analysis of organic samples. I would
think that if you have eliminated those possibiities,
then what you have is not what you think you had,
i.e., an amidine. Is it possible that these kind of
compounds react with carbon dioxide in the atmosphere
to give some type of carbamate or other derivative? If
you have checked into this possibility and ruled it
out then disregard my idea. Hope you get to the bottom
of this problem and let us know the final answer to
it. Best of luck.
Sincerely,
Antonio Regla
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