UW CHEMISTRY NMR

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 […]

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 […]