UW CHEMISTRY NMR
Announcments & Equipment Logs
Spectrometer
ALERT ! AV700 USERS : SYSTEM DOWN UNTIL TOMORROW
The VT system has developed an ice block problem which is being treated currently. The system should be ready for regular use by tomorrow morning i.e. Friday, the 23rd. All the existing reservations for the day are canceled owing to this. Please look for my confirmation about the instrument health before blocking time tomorrow. NMR […]
Posted in Hardware, Spectrometer | No Comments »
UPDATE : NO IMPACT DUE TO POWER SHUT DOWN NEXT WEEK
The good news is that the NMR lab i.e. Rm.37 is not going to be affected by the planned power shut down for couple of hours, next week. The building coordinator Eric Strakbein assured me that he will update this status if there is any imminent change to the same. As of now, the facility […]
Posted in Usage | No Comments »
REMINDER ! OBSERVING X-NUCLEI IN AV500 and DRX499
Please remember the following. You should make sure that the X-channel cable is connected to the correct nucleus port on the probe head, before you tune/match or observe NMR signal from that nucleus. For instance, on AV500 : If you want to observe 13C, make sure that the RF cable is connected to the 13C […]
Posted in Spectrometer, Usage | No Comments »
UPDATE : AV700 – SYSTEM IS BACK ON LINE
Although the VT instability might recur, as I write this, the system is stable and you can start using it. Please keep us posted as to any anomaly you see. Thank you NMR Facility Manager 3/6/2018
Posted in Hardware, Spectrometer | No Comments »
ALERT ! AV700 USERS : SYSTEM WILL BE UNUSABLE UNTIL FURTHER NOTICE
My current estimate is that, the system won’t be available for regular use until tomorrow forenoon. Notwithstanding the extent of the hardware issues with VT system, I am hopeful that I can provide a workaround of sorts tomorrow, at least for users who do not demand extreme temperatures. Stay tuned. NMR Facility Manager 2/6/2018
Posted in Hardware, Spectrometer | No Comments »
ALERT ! AV700 USERS : VT SYSTEM MALFUNCTION
Troubleshooting is going on as to the root cause of the temperature instability. The down time will depend on the source of the problem. We will post an update with more news soon. NMR Facility Manager 2/5/2018
Posted in Hardware, Spectrometer | No Comments »
UPDATE ! AV301 – X -CHANNEL WORKING AS EXPECTED.
We have tested both 13C and 31P observe with 1H decoupling and the transient spikes that were observed earlier is not present anymore. The hardware is working as expected and a mis-adjustment in the parameter setup is identified as the main cause of the noise. We shall keep a close watch, nevertheless. Please note that […]
Posted in Hardware, Spectrometer | No Comments »
UPDATE – AV700 USERS : SYSTEM WILL BE READY IN SOLUTIONS MODE TOMORROW
Approximately by tomorrow noon, the 700 system will be released for regular use with the BBO Probehead, after preliminary tests and calibration checks are done. The reservation calendar will be released for booking around that time. NMR Facility Manager 2/21/2018
Posted in Hardware, Spectrometer | No Comments »
UPDATE ! AV301 – SYSTEM IS BACK IN OPERATION
The acquisition error that prevented 1H data collection has been resolved. Also, the 3D shim set is updated so that you should see a marked improvement in resolution. Please contact one of us if you are having any issues. Thank you for your patience. NMR Facility Manager 2/21/2018
Posted in Spectrometer, Usage | No Comments »
ALERT ! AV301 – SYSTEM HARDWARE MALFUNCTION
I am still troubleshooting the cause of the failure to record acquisition data and hopefully can say if its a quick fix or not, in a follow up post. Please Stay Tuned NMR Facility Manager 2/21/2018
Posted in Hardware, Spectrometer | No Comments »