UW CHEMISTRY NMR

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.

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 […]

Due to the frequently recurring 1H wobb issue, which has occurred again today, the BBI probe is being pulled and sent for repair. The new probe will be the TXD {1H, 19F, 13C} probe typically seen in the av301. Thank you for your patience. Please contact the NMR Facility Managers with any questions or concerns.

We could fix the tuning problem of 1H in house.   But, I cannot emphasize enough, the following :  BE EXTREMELY GENTLE WITH THE TUNE AND MATCH RODS.  It is only a question of time before the problem recurs.  Plans are in the pipeline to provide a backup probehead for AV300 and service this probehead. […]

The 1H channel doesn’t tune as usual. We will try to provide a workaround as soon as we can.  Please stay tuned ! NMR Facility Manager 11/2/15

We will announce once the probe is calibrated for its first use with all relevant parameters optimized.  Thank you for your patience. NMR Facility Manager 11/23/15

We will announce once the probe is calibrated for its first use with all relevant parameters optimized.  Thank you for your patience.