We have a Bruker AMX-600 spectrometer that we mainly use to examine
samples of aqueous solutions. Our problem lies in temperature control. To
be more specific, we are looking for an easier way to chill the VT gas
supplied to the probe. Currently, we use one of two methods to accomplish
this: 1.) Run the house air supply through a length of copper tubing
immersed in an ice bath. 2.) Use the nitrogen dewar/evaporator assembly,
which was supplied with the instrument, to generate a source of cold
nitrogen gas. Neither of these methods is very convenient. Furthermore,
the ice bath does not allow us to take the temperature as low as we'd
like (~280 K). Can anyone suggest some possible alternatives to the
methods described above?
Walter Tabaczynski
Cancer Research Scientist
Biophysics Department
Roswell Park Cancer Institute
Elm & Carlton Sts.
Buffalo, NY 14263-0001
e-mail: wt@labtwo.med.buffalo.edu