UW CHEMISTRY NMR
Announcments & Equipment Logs
Uncategorized
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 »
AV301 UPGRADE MAINTENANCE: ON-GOING
Users: Please note that the av301 is still undergoing the upgrade maintenance and is not currently open for use. We will let you know when the instrument is available. Please see a NMR Facility Manager with any questions. Thank you for your patience.
Posted in Uncategorized | No Comments »
UPDATE ! AV301 – BACK IN ACTION…
With the help of our ever dependable electronics shop, the TXD probe is fixed in house and we have AV301 system back on track with the same probehead. Users can engage the instrument as before.
Posted in Uncategorized | No Comments »
ALERT ! AV301 – UPDATE – SYSTEM IS READY FOR USE
The TXD – 13C {1H,19F} probe has been shimmed up and ready for regular use. The purported hardware issue in the amplifier reported earlier is also resolved now. I thank all the users for their patience and cooperation while the instrument was out of service for priming up the probe. NMR Facility Manager 9/24/15
Posted in Uncategorized | No Comments »
AV301 : TXD PROBE IN – SYSTEM IS READY FOR REGULAR USE
Please let us know if you see anything that is out of the ordinary. Also Note : THIS PROBE DOES NOT HAVE AUTOMATIC TUNING AND MATCHING. You have to tune/match by running the wobb command as with other instruments.
Posted in Uncategorized | No Comments »