Test for Probe Temperature Gradients

Robert Santini (santini@chem.purdue.edu)
Tue, 02 Nov 1993 09:01:36 -0500

I recently heard of a test for determining the temperature gradient in an
NMR probe by direct observation of an NMR effect. As described to me by a
non-technical person, the test involves the observation of a mixture of
water and methyl-acetate. The water resonance exhibits a shift vs.
temperature, while a resonance from the organic compound does not. The data
exhibit an apparent broadening of a resonance from the organic if the NMR
system is locked to the water resonanace.

Does anyone out there know the details of this experiment?

--Thanks,
Robert E. Santini
Department of Chemistry
Purdue University
W. Lafayette, IN 47907-1393
santini@chem.purdue.edu
Voice (317) 494-5227
Facsimile (317) 494-0239