Hi AMMRLers,
This information request is mainly for cold probe users. I know there's
been some discussion on whether a cold probed spectrometer should
undergo frequent probe changes (cold to room temp) or not. I believed
the general advise was to leave the cold probe in the magnet at all
times and I agree with this policy. However, our facility, as well as
other NMR sites with users of diverse scientific interests, may need to
go through probe swaps periodically to satisfy all needs. Until now, I
have swapped cold probes for RT probes only when the former is going to
the factory for repairs. Soon, we will be in a situation where it will
be necessary to have a RT probe in the magnet 10-20% of the time. For
those of you in a similar situation, I would like to ask for comments
on the type of problems experienced during probe exchanges.
I'll thank you in advance and will be happy to post a summary of the
responses.
Sincerely,
Carlos Amezcua
________________________________________________________
Dr. Carlos A. Amezcua
Biomolecular NMR Manager
University of Texas Southwestern Medical Center
Biochemistry Department
5901 Forest Park Rd.
Dallas, TX 75235-8816
ND8.910
Tel: 214-645-6380
http://utswbionmr.swmed.edu
Received on Tue Aug 30 2005 - 19:14:23 MST