UW CHEMISTRY NMR

Announcments & Equipment Logs

DRX499 : SYSTEM DOWN DUE TO HARDWARE FAILURE

Both the power amplifiers have damaged power supplies, which are being repaired in house. It is hoped that it will be a quick fix. The instrument will be released as soon as one of the amplifier is tested to be ok. NMR Facility Manager 12/15/17

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UPDATE : AV300 – ATMA AND ATMM WORKING NORMAL – AS OF NOW…

The noise noted by users on WOBB curve while ATMA is fired up, seems to be an intermittent issue and it is not observed as of now.  Also, the spectra themselves didn’t show any spurious noise spikes even when the spikes on WOBB curve was observed. We will keep watching for this behavior to return […]

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UPDATE : DRX499 – SYSTEM RELEASED FOR ROUTINE USE

Please use the starting shim file : stdbbo before you touch up lower order shims.  If you need any specific help with shimming, please contact either Adrienne or myself. NMR Facility Manager 12/1/17

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UPDATE : AV300 AND AV301 – THINGS ARE BACK TO NORMAL

The ATMA errors as well as communication issues between the PC and console seemed to have stemmed from a possible power disruption, that was momentary.   Both the systems working normally as I write this.  If you still notice any issues, please post a message or send an email. NMR Facility Manager 11/29/2017

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ALERT ! DRX499 – IMMINENT PROBE SWAP

The TXO – 19F,13C {1H} probe needs to be refurbished to its full potential and this is long overdue.  We will therefore replace this probe with our backup BBO{1H}-Z gradient probe on Thursday, the 30th of November.   With the availability of Gradient shimming, the work up of backup probe should be quicker and we will […]

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UPDATE ! DRX499 – SYSTEM BACK TO USABLE STATE – UPGRADE HAD SETBACKS

First I will start with a heartfelt thank you for patiently enduring my tinkering and noise making for the past 10 days.  What we have achieved so far with this hardware upgrade : You can record 2H NMR spectra as well as decouple 2H, without any special cable switching or further complications. The old and […]

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ALERT ! NMR ACCESS AND BAGLEY ELECTRICAL SHUT DOWN ON 29TH OCT ’17

TO ALL NMR FACILITY USERS – PLEASE READ ! I am sure all of you have seen the announcement from Erik Strakbein about the Bagley Hall Electrical Shutdown that is scheduled over coming weekend. In anticipation, we will be preemptively shutting down ALL the NMR SYSTEMS before the electrical outage happens.  According to current plans, […]

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UPDATE ! DRX499 – HARDWARE UPGRADE IN PROGRESS

As some of you might have noticed, the Hardware Upgrade you saw in the reservation calendar pertains to upgrading the system with Gradient Shimming and 2H observe capability, that hitherto was not present. Although we had an old but functional gradient amplifier, the console was not capable of utilizing it to do  gradient shimming, which […]

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UPDATE ! AV500 – PROBE CHANGED TO TRIPLE RESONANCE – HCP

The BBI probe’s VT dewar is faulty, which most probably contributed to an over temperature event.  Since we have to wait for the replacement part to arrive (might be a couple of weeks), the following probehead has been placed and optimized for regular use : TXI – 1H {13C, 31P) – XYZ gradient This probe […]

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UPDATE ! AV301 : SYSTEM IS BACK IN ACTION

Pneumatics system is fixed and working properly.   Ready for regular use. NMR Facility Manager 9/26/17

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