UW CHEMISTRY NMR
Announcments & Equipment Logs
Spectrometer
UPDATE ! AV300 – SYSTEM BACK IN ACTION…WITH THE ATMA PROBE !
Dear Users Despite my ominous message earlier about putting a backup probe in place with manual operations, I am glad to report that we managed to fix not only the ATMA probe in-house but also the original issue in the console electronics, which drove this venerable Probehead crazy. I have released the instrument for regular […]
Posted in Hardware, Probeheads, Spectrometer, Usage | No Comments »
ALERT ! AV300 – SYSTEM DOWN DUE TO PROBE ISSUES
The ATMA Probe is repeatedly failing in both tuning/matching and gradient shimming parts. Though we will first attempt to find an in-house remedy for the above, the chances are slim that it will be successful, given the history of this probe. We will do what we can to provide a backup probe in the system, […]
Posted in Hardware, Spectrometer, Usage | No Comments »
GG500 : UPDATE ON LOCKING – INCONSISTENCIES ADDRESSED
Dear Users Thank you for those of you who brought the following intermittent issue to my attention : Locking fails sporadically, but mostly on solvents with a weak lock signal, such as CDCl3. The autolock failure has been observed, sometimes after Topshim completes and at other times, even during initial locking attempts. The good news […]
Posted in Hardware, Spectrometer | No Comments »
AV500 : IMPORTANCE OF TOUCHING UP THE X,Y SHIMS
Dear Users Way back, I had highlighted the importance of touching up the so-called transverse shims a.k.a. X and Y shims, AFTER you have completed the Topshim command. I had shown a real-life example of the difference this simple step makes in getting a well resolved and great spectrum. Here is a link to that post […]
Posted in Hardware, Spectrometer, Uncategorized, Usage | No Comments »
AV301 : SYSTEM READY FOR USE WITH SURROGATE BBI PROBE
Dear Users The regular probe with a faulty ATMA motor assembly is pulled out for repairs. Do not underestimate the probe that is placed in the magnet as a backup, because it is called Surrogate. This is a newly procured “gently used probe” in excellent condition and gives beautiful spectra as I show below. […]
Posted in Hardware, Probeheads, Spectrometer, Usage | No Comments »
IMPORTANT REMINDER ABOUT ATMA ! PLEASE READ
I am motivated to post this in the wake of ATMA problem with the AV301 probe but, this is generally applicable to both the 300 MHz systems and the new probes with ATMA capability we will get in the near future. Message : Always LOCK first on your solvent BEFORE you attempt ATMA. ATMA program […]
Posted in Hardware, Probeheads, Spectrometer | No Comments »
ALERT ! AV301 – PROBE DOWN DUE TO ATMA RELATED ISSUE
At this point, it is not clear if it’s a hardware problem or a software related issue. We will try to resolve it as soon as we can. If it comes down to the probehead hardware that might take more time to fix, I will place a backup probe in the system. I will post […]
Posted in Hardware, Probeheads, Spectrometer | No Comments »
UPDATE – GG500 ! SOFTWARE ERROR IN ICON-NMR RESOLVED…
The software glitch that prevented users from routine spectroscopy is now identified and removed. Please continue using the instrument as before. Also feel free to give us feedback if you notice anything out of ordinary. To do so, you can either use the online Instrument Logbooks at the instrument or here You can also use […]
Posted in Software, Spectrometer | No Comments »
IMPORTANT NOTE – SOFTWARE ! MNOVA DOWNLOAD LINKS UPDATED
Dear Users While we are all enjoying the ease of offline NMR Data Processing using MNOVA software, it is important to point out that the License we had purchased is valid only up to the software version 14.2.3 (legacy versions are valid also). The departmental webpage is now updated to provide you a Direct Download […]
Posted in Software | No Comments »
UPDATE ! GG500 – INSTRUMENT BACK TO NORMAL
Dear Users The sample handling issue that was reported had since been resolved. The instrument is open for reservation but for a cryogen fill slot this morning. Thank you for your kind understanding. NMR Facility Manager 07/08/2022
Posted in Hardware, Spectrometer | No Comments »