UW CHEMISTRY NMR
Announcments & Equipment Logs
GG500 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 DRX499 instrument by submitting an entry using the “Post Log Entry” box found below.
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282 Responses to “GG500 Log Book”
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Unable to wobb, connection to spect (aqport0) failed.
software was not launched after I logged into the computer.
Can’t shim – unstable lock? Spectra shifted up-field by ~4 ppm when compared against similar compound.
logged in to the computer, but topspin software did not show up. So, I clicked “log out” under my username, on the left corner of computer screen. It did not go back to the red screen that allows user to log in, but show black screen instead.
Not able to launch software. Said “number of Topshim licenses exhausted. You’re trying to run too many copies of this program”
After trying the gradshim command, an error message is coming up (“void shim”? “E3”?)
rga and zg don’t work. I get an error message and no data collection.
The drx499 is now ready for use with the TXO probe after extended calibrations.
The drx499 is working per normal function.
There is no signal. I noticed the receiver gain was set abnormally high for my samples on HNMR. After processing the data there is only noise. The result is the same even with the dummy sample. The same compounds run fine on AV500.