UW CHEMISTRY NMR
Announcments & Equipment Logs
Spectrometer
AV500 – TOPSHIM – NOTE ON AUTOMATIC SHIMMING
There are still some pending calibration operations with the TXO-19F probe that was put in yesterday and this makes the Topshim automatic shimming unusable currently. As you may be aware, there’s been an impact on available NMR time due to probe issues on other instruments. To minimize this, we will keep using the TXO-19F {1H,13C} […]
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UPDATE ! – AV301 AVAILABLE
The av301 is now available for reservation and use. It currently has the TXD triple resonance probe.
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UPDATE ! DRX499 – LOCK SYSTEM RESTORED
Users should be able to lock on the solvents as usual. Please use the default shim file stdbbi and shim up at least the minimal lower order shims to get a good lineshape.
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DRX499 Lock
Due to an issue with the lock on the drx499, experiments cannot be run on the instrument at this time. Reservations are restricted until the issue is resolved.
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UPDATE ! DRX499 – GRADIENT AMPLIFIER FUNCTIONAL
All gradient assisted spectroscopy should be possible now including solvent suppression. Please let us know otherwise.
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ALERT ! DRX499 – GRADIENT AMPLIFIER HARDWARE FAILURE
The DRX499 gradient amplifier is being repaired in our electronics shop. Until the amplifier is back in the console, no gradient assisted experiments are possible, including solvent suppression experiments. Please look for further updates on this issue.
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DRX499 Availability
The drx499 is available for use! Please note that the drx499 now indicates the lefthand magnet when facing the 2-500 MHz magnets. This magnet is equipped with the 5-mm BBI probe. Please note that if you use the macros proton, carbon, phosph, or if you load a parameter set using “rpar”, your experiment should run […]
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ALERT ! AV301 – SYSTEM DOWN DUE TO HARDWARE FAILURE
A possible hardware error in one of the circuit boards is preventing communication between the console and host computer. Troubleshooting is proceeding to identify the relevant board. Until further notice this system is not available for use. Updates will be posted in due course.
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NMR FACILITY UPGRADES – UPDATE
Dear Users : The planned upgrades got delayed by a week since we had to wait for the new hardware to arrive and they are being received this week. We will start the whole exercise on Monday the 5th of May and be completing by Friday, 9th of May, earlier if we are lucky. We […]
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NMR FACILITY UPGRADES – POSTPONED!
The NMR Facility Upgrades planned to occur the week of April 28, 2014 (next week) have been postponed by one week to the week of May 5. These upgrades and changes affect the AV500, DRX499, and AV700. Please see Adrienne or Rajan with any questions or concerns. Thank you.
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