UW CHEMISTRY NMR

Announcments & Equipment Logs

ALERT ! AV500 – PROBE HAS BEEN CHANGED

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.  […]

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UPDATE ! AV500 – SYSTEM NORMAL WITH BBI PROBE IN PLACE

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 […]

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ALERT ! AV500 – POSSIBLE PROBE CHANGE – VT DEWAR DAMAGED

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 […]

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UPDATE – AV300 : LOCK SYSTEM NORMAL

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

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ALERT ! – AV300 : LOCK MALFUNCTION WILL BE FIXED TODAY BEFORE NOON

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

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UPDATE ! AV700 : SYSTEM IS RELEASED FOR USE – PLEASE READ

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 […]

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ALERT ! AV700 USERS : SYSTEM WILL BE DOWN FOR VT SYSTEM TROUBLESHOOT

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

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UPDATE ! AV301 : SYSTEM BEING MONITORED…

We are aware of the unpredictable manner in which the acquisition gets interrupted once in a while. Thank you for the users who are engaging the instrument notwithstanding this condition and if you are feeling frustrated, I can totally understand.  Rest assured that we are closely collecting the OS level information when you engage the […]

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UPDATE ! AV301 : SYSTEM IS RELEASED FOR USE – WITH A CAVEAT

There are two problems we are trying to troubleshoot that are of a sporadic nature.  As I write this, when a user logs in, everything might proceed as normal (including the UDRIVE mount).   It is also possible that the acquisition ends with an error message. In either case, the best recourse to pin down the […]

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ALERT ! AV301 : DOWN UNTIL FURTHER NOTICE

From the diagnosis so far, it is a computer related glitch that is causing intermittent acquisition failure of the kind noticed by some of you. We are working to resolve this asap.  Please look for further updates. NMR Facility Manager 6/6/2018

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