UW CHEMISTRY NMR
Announcments & Equipment Logs
Spectrometer
AV301 : PROBE CHANGE UPDATE – ATMA PROBE IS IN
Users are requested to note that you do not need to start wobb command with this Automatic probe. Either type atma or click on the Auto-Wobb button. Please ask one of us if you have questions.
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AV500 : UPDATE ! – TXO – 19F probe change advanced to Monday, the 31st April
The planned probe change of next week is advanced by one day to March 31st, Monday. After the routine calibrations, the probe head should be ready for use by noon of Tuesday, 1st April ’14. Users are requested to take note.
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AV301 – PROBE CHANGE ALERT ! PABBI – 1H {X-BB} ATMA PROBE WILL COME IN ON 2 APRIL
The existing TXD -1H {19F, 13C} probe will be replaced by the Automatic Tuning/Matching (ATMA) on Wednesday the 2nd April 2014. After the ususal lineshape priming and calibrations, the probe will be released for regular use on Thurday, the 3rd April ’14, approximately by 10.00 am.
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PROBE CHANGE ALERT ! : AV500 PROBE WILL CHANGE TO TXO – 19F {1H,13C} ON 1 APRIL
Please note that the BBO probehead will give way to the TXO – 19F {1H,13C} triple resonance probe on 1st April, 2014, Tuesday. After the usual lineshape priming and calibrations, the probe will be released for regular use the next day, 2nd Apr’ 14, approximately by noon. Users are requested to plan accordingly.
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AV300 : USER ERROR – PROBLEM RESOLVED
Due to the excessive torque applied by a user on the 1H tuning knob, the capacitor engaging mechanism slipped from its default position and the probe could not be tuned/matched. This problem is now rectified and the 1H channel is operational. This calls for another STRONG reminder that users need to be gentle with the […]
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REMINDER : AV800 TIME AVAILABLE NEXT WEEK FOR WALK-ON USERS
Upto 24 hours of NMR time is available on the 800 MHz + cryoprobe system for the walk-on users to avail, beginning noon of Monday, 10th March until noon of Tuesday, 11th March. Please contact the facility manager to block your time, at least by coming Friday, the 7th of March ’14.
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ALERT : AV700 – PROBE CHANGE
The solutions probe will give way to the solid state MAS probe in this instrument sometime in the first week of March 2014. The exact date will be confirmed in a follow up post. Users who need to utilize the MAS feature at 700 MHz should contact Adrienne immediately to schedule time.
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REMINDER ! AV800 TIME AVAILABLE
Users who want to avail the high field NMR at 800 MHz with the cryoprobe, capable of detecting very low concentration sample can approach the facility manager today with their plan of experiments. A 24 hour slot of walk-on period is available from Monday, the 24th until Tuesday, the 25th. NOTE: the walk-on period is […]
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UPDATE ! AV301 – READY FOR USE
The lock system has been refreshed to the default configuration and tested to work ok with different solvents. Please keep us posted if any of you still have difficulty locking. Please include details of the lock solvent used.
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ALERT ! : AV301 – LOCK SYSTEM DOWN
The Lock system’s firmware is corrupted leading to unpredictable lock performance, as noted by a few users already. Probable cause is related to the disruption that occurred on all the machines over the long weekend. The firmware update will take couple of hours after which the system should be ready.
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