UW CHEMISTRY NMR

Announcments & Equipment Logs

Uncategorized

UW IT’s DATA STORAGE SYSTEM FOR NMR DATA – udrive – PART 2

We need volunteers to try out this new data storage paradigm, initially via the AV301 instrument.  PLEASE COME FORWARD !! Your current data storage and retrieval method via  FTP server will NOT be affected during the testing period. If you would like to help with the effort, please contact me or Adrienne and thank you […]

Posted in Datasets, Software, Uncategorized, Usage | No Comments »

UPDATE ! AV301 – SYSTEM BACK TO NORMAL

Users can start booking time for regular use. Please post a message in the log book, if you notice anything amiss. NMR Facility Manager 12/30/2016

Posted in Uncategorized | No Comments »

ALERT ! AV301 – SYSTEM IS READY FOR USE AGAIN ! – SORRY FOR THE INTERRUPTION

It has been a normal practice that we post a warning when the instrument goes down and give a brief explanation about the nature of the problem.  In the past couple of days, I had to take down the instrument from regular use without any announcement because, what appeared to be a simple software issue […]

Posted in Uncategorized | No Comments »

ATTENTION ALL USERS ! : NMR LAB RM: 37 ACCESS RESTRICTION THIS WEEK

Facilities Works will redo the flooring of the corridor in Bagley Hall where the NMR lab is located  on the following days this week :  Tuesday, Wednesday and Thursday. This operation will last from 5.30 am until 8.30 am on each of these days.  During this time, no foot traffic will be allowed on the […]

Posted in Spectrometer, Uncategorized, Usage | No Comments »

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.  

Posted in Uncategorized | No Comments »

Stinky BAG 37

We are aware of the thioketone smell in BAG 37. Unfortunately, after the initial clean-up there is little we can do. The smell will dissipate on it’s own.

Posted in Uncategorized | No Comments »

UPDATE ! AV301 – TXD – 1H {13C, 19F} SURROGATE PROBE IS BACK…NO ATMA ! NO TOPSHIM

The recently repaired PABBI probe has been identified with a hardware issue on its lock channel. We have shipped the same to manufacturer to fix it ASAP. Until that probe is back, we have in place, the TXD triple resonance probe that can do 1H, 13C as well as 19F. PLEASE NOTE :  We have […]

Posted in Hardware, Spectrometer, Uncategorized | No Comments »

UPDATE ! AV301 : TXD PROBE IS IN PLACE AND READY FOR USE

The incoming probe is the one you are familiar with :  TXD 1H {19F, 13C} probe.  This probe has excellent lineshape characteristics and easy to shim. NOTE : You have to run ‘wobb’ command and then tune/match by hand, similar to what you do on AV300 and AV500 instruments. There is no automatic Topshim facility […]

Posted in Uncategorized | No Comments »

ALERT ! AV500 – SYSTEM FUNCTIONAL WITH A POSSIBLE CAVEAT

The power fluctuation yesterday left a few issues lurking in the console, which are resolved now.   The X-channel is working as expected but the 1H channel still has a detuning problem.   Due to this you will notice rather noisy 1H spectrum – this is related to the wobb curve simply moving to a detuned state […]

Posted in Uncategorized | No Comments »

UPDATE ! AV500 – FAULTY CIRCUIT BOARD REPLACED

One of two boards have been replaced and we are waiting for the second board to arrive.  But, with this replacement, full functionality is restored to the most part. The 1H 90 pulse width is now 7.5 us at the usually employed lower power (contrast with the 18 us we reported a few days ago) […]

Posted in Hardware, Spectrometer, Uncategorized | No Comments »