UW CHEMISTRY NMR
Announcments & Equipment Logs
November, 2022
UPDATE ON AV500 AND GG500
Dear Users : AV500 : We have swapped in the triple resonance TBI-1H {13C,X} probehead. Please take a moment to look at the Summary sheet that is displayed on the console box behind the computer. Please get in touch with one of the facility staff if you have any questions. This probe can perform Topshim […]
Posted in Hardware, Spectrometer, Usage | No Comments »
PREPARING FOR 500 MHz INSTRUMENT UPGRADES
Dear Users Recently, some of you might have seen a Post in this space about oncoming instrument Upgrades in the 500 MHz category. Here is a link to that roadmap, in case you missed it. To summarize : Beginning of the New Year 2023 We will be left with two modern 500 MHz spectrometers : […]
Posted in Hardware, NMR Facility Usage, Probeheads, Software, Spectrometer, Usage | No Comments »
UPDATE – AV301 : REPAIR PARTS ORDERED TO RESURRECT PROBE
Dear Users The consistently poor shim performance and the related failure to lock on a solvent after Topshim, especially for weak solvent signals such as CDCl3 is due to broken parts inside the probehead. Since this is the surrogate i.e. backup probehead, I do not have another backup probehead with Topshim capability to replace it […]
Posted in Probeheads | No Comments »
AN IMPORTANT APPEAL ! – PLEASE TAKE NOTE
Dear Users ! With the weather turning colder and winter knocking on the door, the toasty environs of the NMR Lab (Bagley 037 and 033) perhaps offers a tempting invitation to cuddle up with a hot mug of coffee and a snack….I understand. Unfortunately, the regulations stipulate that there should be NO FOOD OR DRINKS […]
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ALERT ! AV301 : SYSTEM WILL BE OUT OF ACTION…FOR A DAY OR SO
Dear Users I have been receiving sporadic complaints that the Locking operation is not reliable as well as Topshim is giving ‘iffy’ results. I briefly looked at the issue this morning and I am also not very happy at the shim results. Since there are a few moving parts to this subtle problem (the failure […]
Posted in Hardware, Spectrometer | No Comments »