UW CHEMISTRY NMR
Announcments & Equipment Logs
AV500 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 AV500 instrument by submitting an entry using the “Post Log Entry” box found below.
269 Responses to “AV500 Log Book”
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The shims are not great, even when manually shimmed after using topshim
Many ghost peaks in 1H NMR.
Maximum adjustments with matching rod (in either direction) could not produce satisfactory wobb curve.
The tuning and matching rods are at their maximum position before I tried to adjust them. I tried to adjust them but cannot reach a peak at wobb for proton spectrum.
The lock system issue has been resolved. Please continue to log problems.
Still can’t lock.
Still can’t lock.
system can’t lock.
Instrument continues to be unable to lock on CD2Cl2, C6D6
Same issue: System will not lock on CDCl3. “Sweep” light remains on.