TROUBLESHOOTING 101

 

This section is still in development. It would be a growing FAQ covering most frequent problems an NMR user may encounter

 

Q: I have broken an NMR tube inside the NMR spectrometer - what should I do ?

A: Stop right there ! Put a note saying the machine is out of order and  call Dr Wu. Do not try to get your tube out by yourself - you can damage the probe. Sample fate: possibly, some or all of your sample still can be recovered.

Q: Type 'ga' or 'h1' nothing happened  or  'The acquisition window show 'inactive', rather than 'idle'?

A: Lost communication between computer and console. Open a shell by click the console icon on the top right of the screen, then type 'su acqproc'. The communication will be re-established. In the command line type 'h1' to make sure everything is OK.

Q: I could not find lock signal?

A: Your sample is dissolved into a deuterated solvent? If yes, check Z0 value for your solvent, then set the Z0 in the Lock Window. If you still can not find signal, call for help.

Q: After I clicked spin on, the sample is still not spin?

A: Eject your sample, clean the spinner, try again. If not, you could still acquire spectrum, but you should notify Dr. Wu.

 Q: How to transfer my data from Sun Workstation to my PC?

A: Use NMR center's PC and FTP the data from the Sun Workstation. There is a detailed instruction nearby the PC in RM210.

 

 


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