UW CHEMISTRY NMR
Announcments & Equipment Logs
November, 2016
ATTENTION ! – USERS WHO EMPLOY J-YOUNG NMR TUBES…PLEASE READ !
J-Young NMR tube users must be fully aware by now that tubes that are bent from being perfectly linear cannot be ejected comfortably and they can even cause breakage inside the NMR probehead. Most of the time, the stuck tube entails complete removal of the probe from the magnet, followed by a not so simple […]
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AV700 : SOLUTIONS TO SOLIDS TRANSITION COMING UP – Dec 8
We will switch the AV700 to solids NMR beginning December 8th, Thursday and the system will serve the solids request queue until the end of December as per current estimates. Based on how the runs pan out, we may be in a position to switch back to solutions even earlier. Please look out for a […]
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UPDATE ! DRX499 – SYSTEM READY FOR USE !!
The probe in the system now is : BBO- 1H{X}-Z gradient. You can use the standard shim set : stdbbo before you shim up your specific sample. The probe that was damaged due to sample spillage will take a while to fix. An update will be posted, once that probe is ready for test.
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UPDATE ! DRX499 – PROBE CHANGE IMMINENT
Since there was extensive sample spillage inside the TXO probe that is giving a large background interference, this probe cannot be employed in its current shape, presently. We are putting in the alternate probehead i.e. BBO – X-{1H} Z Gradient and priming the same for routine use. Current estimate is that we will release the […]
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ALERT ! DRX499 – INSTRUMENT DOWN DUE TO USER SAMPLE BREAKAGE
User sample tube has broken inside the probehead and the instrument is not usable currently. Probe needs to come out of the magnet to know the extent of damage or spillage. Based on the assessment, we will decide if the TXO probe can be back in the system or a different probe will take its […]
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UPDATE : AV300 – SYSTEM BACK IN USE – WITH THE OLD PROBE STILL
The ATMA Probe that was procured as part the hardware upgrade, unfortunately, had been found to have a faulty motor that prevents it from Automatic Tuning/Matching operation. The probe has been sent back for repairs and the older BBI probe has been put back and shimmed up. I will announce the completion of the upgrade […]
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