UW CHEMISTRY NMR

Announcments & Equipment Logs

Hardware

ALERT ! AV301 : PERSISTENT ISSUE

I am aware of the issues related Sample Handling as well as general system stability that people complained about from yesterday. We will provide a solution to this asap today and I will post an update in this space. NMR Facility Manager 3/5/2021

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UPDATE ! AV300 : BACKUP BBO PROBE SHIMMED UP AND READY TO GO !

Dear All The ATMA probe has been sent for repairs and I immediately don’t know when it will return from the manufacturer.     In the meanwhile,  the Broad band BBO probe, which uses manual tuning/matching  in place of the automated system is now in the magnet. Although we are all rather used to the comfort of […]

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UPDATE ! AV300 – BACKUP MANUAL BBO PROBE IS GETTING READY

As I mentioned last week,  the ATMA probe is now shipped to the maker for further repairs.  The earlier BBO probe, where you tune/match by hand, is being shimmed up and getting ready for regular use.  I estimate that the probe should be ready by the end of today. I will post another update announcing […]

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UPDATE ! DRX499 – SYSTEM IS USABLE NOW..

Dear DRX499 patrons The computer system froze couple of times and we have done our part in reviving the same.  As I write this,  the spectrometer is usable as before but we will be closely watching the behavior, since we haven’t fully identified what caused the system freezes.   So, if that happens again, feel free […]

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ALERT ! AV300 – IMMINENT PROBE CHANGE

Dear Users Continuing on the ATMA probe, that underwent a substantial overhaul with considerable cost, we are convinced that the probe’s tuning/matching ability is not upto par with what is promised by this repair.  You can realize this if you attempt to run ‘atma’ on solvents such as ‘C6D6’ and the system pretty much fails […]

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UPDATE – AV300 : ABOUT THE ATMA PROBE

Dear User The probe has been fitted with a totally new Automatic Tuning and Matching hardware assembly as part of its refurbishment.  This means that, when you run the ‘atma’ command and if the solvent that is used with your sample has not been already ‘registered’ in the probe’s database, it takes a while to […]

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ALERT ! AV300 – ATMA (Auto Tune and Match) PROBE IS BACK IN THE INSTRUMENT

Dear Users Afte a long wait, the probe which has undergone a thorough (and expensive) overhaul is back in the AV300 magnet.     With a noble motivation to provide immediate access to this more convenient probe,  I have done a ‘quick and dirty’  install of the probe and I am releasing the same for regular use. […]

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UPDATE ! AV300 – ATMA PROBE STATUS

Dear NMR Users I am sure you have not forgotten about the rather convenient ATMA probehead with its ability to do automatic shimming along with Tuning and Matching. As I write this,  we have exhausted the possible ways we can revive this workhorse probe in-house and the it is being shipped to the manufacturer for […]

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UPDATE ! AV300 – SYSTEM IS READY FOR USE

Dear Users The system is ready for use now.  The delicate glassware inside the probehead has broken and that is the main cause of the sample eject as well as spinning issues.  It is fixed now and I have also shimmed up the probe to a decent state, after replacing the broken hardware. Please remember […]

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ALERT ! AV300 – SYSTEM UNUSABLE NOW…PNEUMATICS RELATED ISSUE

Dear Users As couple of you have noticed and communicated earlier, there is a sample ejection/injection problem in the system.  A preliminary look today points the problem in the direction of the probehead.  I will try to further investigate this afternoon and if a fix can be provided in house.  Until that happens, I am […]

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