UW CHEMISTRY NMR

By now familiar but ongoing issue with the VT cooling system is forcing an interruption once again today.   We will work on an alternative and I am hopeful that the instrument can be released for regular use by tomorrow.  Please look for further updates. NMR Facility Manager 7/19/2018

Since I discovered today morning that the VT dewar in the probe is compromised,  I had to replace the BBI probe with the a different probe : Current probe head : TXI- 1H {13C, 15N} – Z gradient This is a triple resonance probe that is capable of handling 1H, 13C and 15N detection only.  […]

NEW PROBEHEAD IN PLACE ! CURRENT PROBE :  BBI 1H {X} – Z gradient DEFAULT SHIM SET : stdbbi Temperature range : -100 C to +70 C (for the former, special low T setup is needed. Contact for further details) PLEASE USE TOPSHIM FOR GETTING THE BEST RESOLUTION AND LINESHAPE Questions/Comments/Help ? :  Please contact […]

The VT dewar inside the probe has been compromised and so you CANNOT run Variable Temperature experiments currently. ONLY nominal room temperature experiments are allowed at this point. We will most probably place a different probehead in place of the current HCP-Z Gradient probehead while the current probehead is serviced.  We will try to do […]

All good to go.  Please let us know via log book, if there is still any issues you notice. Thank you NMR Facility Manager 6/27/2018

We are aware of the Auto Lock function having issues.  In a few moments this will be addressed and an update will be given about the outcome. Stay tuned. NMR Facility Manager 6/27/2018

The system is ready for normal use.  Nevertheless, the VT system test is still being conducted in parallel in such a way that the users’ runs are not affected.  As before, the LN2 tank you see is the source of the N2 gas, which is used as part of the troubleshoot process. The supply from […]

Please wait further updates as to when the system will be back on line. NMR Facility Manager 6/12/2018

We are working actively to resolve the issue and will post an update once the task is competed.  Other than the ‘udrive’ mounting problem, we are also aware of the acquisition error messages that was noticed by users. Hopefully, both these error conditions will be resolved at the same time. NMR Facility Manager 6/5/2018