UW CHEMISTRY NMR
Announcments & Equipment Logs
AV300 Log Book
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Please record your comments and relevant observations about AV300 instrument by submitting an entry using the “Post Log Entry” box found below.
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305 Responses to “AV300 Log Book”
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topshim failed 5 times.
Had to attempt topshimming 6 times, ran out of booked NMR time
The first time I tried to atma, I got an error saying that you cannot wobb with this probe. I typed wobb and it worked. Then atma and the job succeeded fine
topshim failed twice for me today (too many points lost, low signal to noise) in 1:9 CHCl3:CDCl3. Locking and atma fine
As “ej” command typed, the screen says “read spin number error” and unable to eject the decoy tube.
Topshim failed 3 times because the signal to noise was too low
Topshim fails for one reason or another the first time ( too many points lost, bsms limits exceeded, etc), but rerunning the command it works. The same for atma- the first time it says atma cannot be performed on this probe, but upon rerunning the command it magically works.
topshim fails-too many points can not be recorded…
topshim fails with the following error: “SetShims – BSMS limits exceeded
ATMA not working – gives me error “channel can’t be wobbled with this probe ”
Followed by “cannot select Probe channel”