UW CHEMISTRY NMR
Announcments & Equipment Logs
Spectrometer
AV300 – UPDATE : WAITING FOR BROKEN HARDWARE COMPONENT
We had identified the faulty circuit board, that led to the ‘wobb’ problem and most probably compromised parameters in a regular NMR measurements, that were not noticed by many. While waiting for a replacement from manufacturer, we are putting every effort to fix this in house, if we can. We estimate that it will be […]
Posted in Hardware, Spectrometer | No Comments »
ALERT ! AV500 – PROBE CHANGE ON THURSDAY, 11TH FEB ‘ 16
The BBI Z-gradient probe has been repaired and is ready to be installed and field tested. We will put in the probe by the afternoon of Thursday, 11th February ’16. Hoping that everything turns out right, the spectrometer should be ready for regular use by that evening.
Posted in Hardware, Spectrometer, Usage | No Comments »
UPDATE – AV300 : HARDWARE ISSUES IDENTIFIED AND AV301 IS WELL AND HEALTHY
First of, my sincere ‘thank you’ for putting up with the erratic schedule on the AV301 calendar yesterday, while we were trying to troubleshoot the tuning/matching problem on AV300. I am sorry that I could not prepare the user base more in advance for this interruption. As you all seem to know, AV301 has been […]
Posted in Hardware, Spectrometer | No Comments »
AV301 ALERT! – USER TIME
While the av300 tune and match issue on the wobble curve is being addressed, there may be short notice cancellation of user’s time on the av301 to aid in the av300 repair. Please check your time on the av301 at the last minute to be sure the Facility has not over-ridden it. The NMR Facility […]
Posted in Spectrometer | No Comments »
UPDATE – AV300 – SYSTEM WILL BE DOWN UNTIL FURTHER NOTICE
The preamplifier module is out of action for component level troubleshooting in relation to the tuning and matching issue. There is no easy workaround at this point to keep the spectrometer running and so users are requested to engage other instruments for routine spectroscopy. Updates will be posted as soon as we make progress.
Posted in Hardware, Spectrometer | No Comments »
AV300 – PRINTER UPDATE – PRINTING IS OK NOW
The spectra that were spooled from Topspin when the printer was having issues, are printed out now. The hard copies can be found next to the printer. Owners, please collect them when convenient.
Posted in Hardware, Software, Spectrometer | No Comments »
ALERT ! AV300 : WOBB ISSUE BEING INVESTIGATED
The ‘wobbly’ wobb has been an ongoing issue that we are aware of and haven’t gotten to with full force. We will be doing the same today and try to understand what’s causing it. Based on observations made thus far, it might take a while before we fix this in house or get some parts […]
Posted in Hardware, Spectrometer | No Comments »
AV300: BBI PROBE INSTALLED
The BBI 1H{X} probe has been installed on the av300. It is released for use. We are still observing some noise on the wobb for both channels, which we are working on resolving. Thank you for your patience.
Posted in Hardware, Spectrometer, Usage | No Comments »
USERS NOTE ! AV301 AND OTHER INSTRUMENTS – NEED YOUR HELP
Those of you who change the temperature to anything other than the room temperature i.e. 298 K are requested to be considerate to the next user. Please change the default temperature to 298K before you logout. Inadvertently, you might be freezing the next user’s sample or killing the molecule that may not be cozy at […]
Posted in Spectrometer, Usage | No Comments »
DRX499 UPDATE – TXO PROBE INSTALLED
To all users expecting a probe swap on the drx499, the TXO 1H {13C, 19F} probe is currently installed.
Posted in Hardware | No Comments »