UW CHEMISTRY NMR
Announcments & Equipment Logs
Spectrometer
AV301 : UPDATE – 1H {19F, 13C} probe ready for use
Please remember to load the standard shim file stdtxd before you begin shimming. Pay attention to the fact that the RF cable should be switched from the 13C connector on the probe to 19F connector, when you perform 19F direct detection. Please leave the cable back in 13C position once you are done. Contact facility […]
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ALERT : AV301 – PROBE CHANGE
The currently serving double resonance 1H {13C} backup probe in AV301 will give way to the TXD-1H{19F,13C} probe, beginning Oct. 21st, Monday. The probe is expected to be ready before noon. Users are requested to note the change.
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ALERT ! : SMART CARD ENTRY SYSTEM TO THE NMR LAB
All of us who have been watching the progress made with the new smart card key hardware installation might be wondering, when, what and how. I wanted to share what I know thus far. Once the smart card entry system is ready in a day or two, apparently, all those users who already have metal […]
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UPDATE : AV301 – SYSTEM READY FOR USE
The double resonance probe DUL-1H{13C} is installed currently and the instrument is ready for use. The compromised 19F probe is being attended to, in the meanwhile. Users can start reserving time as usual.
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UPDATE: AV500 – SYSTEM IS UP AND RUNNING
Users are requested to resume data collection. Please inform us of anything unusual. Thank you for your patience.
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ALERT : AV301 – BROKEN PROBE INSERT
The AV301 instrument is not available for immediate use owing to the following. The shim set that gave good lineshape last week gives a poor lineshape today. This is indicative that the insert quartz tube is broken once again. If this turns out to be the case, we will replace the same asap and return […]
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NOTE : POWER FLUCTUATION TODAY MORNING
A voltage fluctuation that occurred today morning disrupted the normal functioning of some of the NMR consoles. As I write this, all the consoles are restored to normalcy, except for the AV500 console. An update will be posted in due course about AV500.
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ALERT ! : AV500 DOWN
A power fluctuation today morning has led to widespread disruptions in several NMR consoles. As of now, the AV500 console is down and it might take the better part of today before it is up again. Please plan accordingly.
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AV301 : UPDATE ON LINESHAPE PROBLEM – BROKEN PROBE PART REPLACED
The deterioration of lineshape noted by users is traced to a broken insert glass. This has been replaced and the line shape is adequately restored for the routine runs. A further fine tuning will be done in a few days to bring it to the optimum.
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AV500 : 31P MACRO FUNCTIONAL
Users who are used to typing ‘phosph’ and load the standard 31P {1H} decoupled parameter set are invited to use the same once again. The glitch that was preventing the pulse widths and power levels being loaded is remedied. Any observation you make to the contrary will be much appreciated as a log post.
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