We have an AMX400WB with qnp, H-1 selective, Inverse, and
broadband probes. The qnp is used the most, but the H-1 selective
is used fairly frequently. We also have an imaging system which is
used 2 days per week. Consequently, we have 2 or 3 probe
changes each week.
For some reason, the inner 5mm quartz insert in the qnp probe gets
broken at a rate I haven't documented, but it seems like about once
every 3 or 4 months. (We are using quartz because one of our qnp
nuclei is B-11.) Bruker charges us $50 each for the inserts. It is
rare for a user to actually confess to dropping a sample in the
magnet with no lift, and I really don't think that is happening. So I
don't understand why this is happening so often. Do any of you
have any thoughts on this?
Frustrated in Knoxville,
Bill
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| Electronics Services |
| | | || Department of Chemistry |
|-----||||-------||-----/\/\/\/--------University of Tennessee |
| + | | - || Knoxville, TN 37996-1600 |
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| Bill Gurley, Electronics Specialist [gurley@utkux1.utk.edu] |
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