UW CHEMISTRY NMR
Announcments & Equipment Logs
AV301 Log Book
Welcome to the Chemistry NMR Online Log Book – your One Stop portal to communicate about the spectrometer to the Facility Staff in a timely manner.
Please record your comments and relevant observations about AV301 instrument by submitting an entry using the “Post Log Entry” box found below.
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257 Responses to “AV301 Log Book”
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Sample will not eject, currently stuck in instrument. Note left at workstation, Facility Manager contacted.
There was a spin rate error message. I could not eject the sample.
After topshim, it said “SEtShims-BSMS limits exceeded”
Topshim error on two different samples. Field Map- signal-to-noise is too low: signal loss for long echo time. Result is a very poorly resolved spectrum.
The nmr could not eject the decoy sample. There was a spin rate error
The computer didn’t save the fid file for my previous run’s data.
Computer doesn’t show login screen; can’t log on.
The NMR has been frequently giving bad shims. My signals show no splitting at all even after shimming multiple times.
The AV-301 instrument failed to eject the sample. The dummy sample is in the instrument.
The AV-301 instrument reservation did not allow me to change my end time from 8:30 to 8:00. An error of “Request exceeds maximum time allowed during walk on time” was given, even though I was shortening my total time from 1 hour to 30 minutes. No changes at all were permitted and I only used 30 minutes of my total instrument time.