UW CHEMISTRY NMR

Announcments & Equipment Logs

October, 2015

ATTENTION – AV301 USERS ! – HARDWARE UPGRADE – GRADIENT CAPABILITY IS COMING TO AV301

We are excited to announce that the AV301 instrument will get new hardware upgrade that will make it the third instrument in Bagley 37 to perform gradient assisted spectroscopy. In combination with the ATMA-BBI probe,  this will become a fully automated spectrometer for routine spectroscopy.  Other than injecting the sample, every other operation can be done from […]

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UPDATE – DRX499 – INSTRUMENT RELEASED FOR USE WITH TXO PROBE

The BBO probe has been found to have multiple hardware issues which are being addressed.  To get to back to productive runs,  we have placed the earlier TXO – 19F,13C {1H} – Z gradient probe for regular use.  I would like to point out that the non-spinning shims are not upto the best spec but […]

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ALERT ! – DRX499 – PROBE WOBB MALFUNCTION – X CHANNEL

Tuning for all X-band nuclei i.e. 13C, 31P, 11B, etc. is not possible at this time, though the 1H channel is functioning fine.  We are looking into this and post an update as we make progress.

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UPDATE – AV500 IS OK !

Sample transport is working normally.  As a related remark, if you are using special NMR tubes, that have a shifted center of mass, such as high pressure enclosure tubes or J-Young tubes,  take extra care in seating the sample in depth gauge before inserting it in the magnet.  If you see the missing indicator,  you can use […]

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DRX499 – UPDATE : SYSTEM USABLE AGAIN

Apologies for the delay but the hung process has been cleared and users can start logging in to the instrument as before. NMR Facility Manager 10/15/15

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UPDATE ! AV301 – BACK IN ACTION…

With the help of our ever dependable electronics shop,  the TXD probe is fixed in house  and we have AV301 system back on track with the same probehead.   Users can engage the instrument as before.

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UPDATE : AV301 : PROBE DAMAGED

The 1H tuning capacitor seems to have been forced beyond its limits and the probehead is unusable currently.  We are working on a replacement probehead to take its place. The system will not be ready until tomorrow noon.  Please watch this space for further updates.  

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ALERT: av301 TUNE & MATCH ISSUE

We are currently looking into an issue with the 1H tune and match on the av301. We will update when the issue is resolved.

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ALERT : DRX499 – PROBE CHANGE EVENT – 16th Oct ’15

The currently installed TXO 19F {1H,13C}  probehead will be replaced by the BBO – X{1H} Z gradient broad band probe beginning 16th October, Friday.  The DRX499 needs considerably more time to prime the shims and so the system will be ready for regular operation on Monday, the 19th.   We will keep you informed of […]

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