> The _real_ reason for this is to answer the second point. Gerry
> Harbison showed me a wonderfully elegant/complex solution to the "wet-
> magnet problem". A 4"x5" sponge with a hole cut out of the center is
> inserted over the nitrogen-vent-stack. Then as the ice buildup on the
> vent-hose melts, it just soaks into the sponge, and eventually evaporates.
Y'all are in the wrong climate. I have blocks of ice on the tubes,
but no dripping. After cleaning the ice off the hoses, a block of
ice builds up over a couple of week, then stays constant in size.
The magnets did have those sponges on them when I arrived, but I took
them off since I see no dripping, and the sponges looked ugly.
> My favorite solution is the
> resistively-heated aluminum cap on my two GE-Omega instruments...no
> condensation at all.
Bruker has brass(?) heat-exchangers that fit on the N2 ports. They
work quite well, even in wetter climates. (And don't use any
electricity.)
KAren Ann
Karen Ann Smith karenann@unm.edu
Manager, NMR Facility Adj. Asst. Prof.
Dept. of Chemistry Clark Hall
University of New Mexico Albuquerque, NM 87131
505.277.4031 url: http://www.unm.edu/~karenann
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