UW CHEMISTRY NMR

Few of the users have noticed a spike ridden baseline in the past several days, mostly in 1H spectra, apparently.  Evidently this is a sporadic issue since not all of them have reported this.  As I speak, the spectrometer is giving clean 1H spectrum, as shown below :   Multiple causes can account for the […]

We have a failing amplifier on this instrument (talk about coincidences – or more like resonance !) that makes it unusable currently.   Normally we hope to fix this kind of issue in house and we will attempt to do so in this case also. I will post an update at least by tomorrow that should […]

The X-channel is looking pretty good after we replaced the faulty part with a back up amplifier unit.    Just to give a glimpse,  here is the result of 8 scans of 13C recorded on the solvent of lineshape standard.  Things look pretty good at this point.  PLEASE NOTE :  With the new amplifier in place, […]

The X-channel amplifier is compromised and we are looking into alternatives. We will try to provide at least a workaround to revive the system immediately.  The reservation calendar will be blocked for further booking until the system is nominally operational. Look for updates from this space later. NMR Facility Manager 8/15/2018

Due to  unavoidable changes, the probe swap is going to be moved to Monday the 6th.  Sorry for the inconvenience. NMR Facility Manager 8/3/2018

Currently placed probehead will give way to the TXI-1H{13C, 15N}-Z gradient probehead and the swap is planned for next Tuesday, the 7th, Aug.  After the calibration steps the probe should be available for regular by late in the afternoon. I will post an update once the swap is done successfully and if there are any […]

We will  swap the existing TXO-13C,19F {1H} Probe with the BBO-X {1H}-Z Gradient probehead, coming Friday, the 3rd of August.  As we all know by now, over and above 13C use,  this probe can serve the needs of 31P and other users as well, with much better sensitivity that is provided by the AV500 instrument’s […]