UW CHEMISTRY NMR

Dear Users

      The regular probe with a faulty ATMA motor assembly is pulled out for repairs.  Do not underestimate the probe that is placed in the magnet as a backup, because it is called Surrogate.

This is a newly procured “gently used probe” in excellent condition and gives beautiful spectra as I show below.

• This is an inverse probehead, which means that it has the best sensitivity for 1H observation.
• You can also observe other nuclei, such as 13C, as you would have done with the PABBI probe
• IMPORTANT :  YOU HAVE TO TUNE/MATCH THE PROBE BY HAND

Here is the Intro Card for the probe placed on the console :

 

The probe tunes great and I will show an example of the 13C channel Wobb curve.

Here is a 1H spectrum from Lineshape standard, highlighting the resolution seen with the Acetone-d6 pentet.

A 1D proton spectrum of Strychnine in CDCl3 :

While we do everything we can to expedite the repair of the regular probe, I hope you will put this great probe to good use and keep obtaining the needed spectra for your research.

The small inconvenience of tuning/matching the probe by hand is a worthy price to pay to keep your work throughput at top level.

Please approach either me or Adrienne, if you need further help.

NMR Facility Manager

9.21.22