UW CHEMISTRY NMR

Since the majority of lock solvents used for routine NMR on this instrument are fully dueterated, for those users, the Topshim routine heavily relies on the ability to get good 2H NMR signal response from the hardware. Following reports of sporadic failure of Topshim, I have done a bit of deeper digging and there is […]

This is the second instance where I saw a post saying that sample couldn’t be ejected.  But I didn’t detect any issues per se and all the vitals of the instrument are normal.   If users need some clarification and refresher as to how the sample eject/inject sequence works and what are the possible ways one […]

Sample eject anomaly reported by folks today morning is resolved now.  Along with it, I have also checked the general health of the instrument and all vital signs are normal. NMR Facility Manager 6/8/2021

In continuation of today morning’s instrument log post,  I can confirm that the ‘wobb’ function as well as the ‘Topshim’ functionality works just fine.  I will also add that the probehead is tuning as expected as well for the 1H channel. I have also run some test runs and the overall behavior of the probe […]

The sample eject/inject issue has been resolved.  In the process of checking other BSMS related functions,  I have also updated the optimal default shim file :  stdpabbi. When you are in doubt, always use : rsh stdpabbi to take advantage of the best higher order shims that will give you the best lineshape for all […]

The acquisition error reported in the log is fixed now. NMR Facility Manager 3/29/2021