UW CHEMISTRY NMR

Dear Users

Way back,  I had highlighted the importance of touching up the so-called transverse shims  a.k.a. X and Y shims, AFTER you have completed the Topshim command.

I had shown a real-life example of the difference this simple step makes in getting a well resolved and great spectrum.   Here is a link to that post :

• TIPS – GETTING THE MOST OUT OF YOUR SHIMS – AV500 AS AN EXAMPLE | UW CHEMISTRY NMR

The importance of this simple step has not changed in all the days since.   In the following Desktop video capture, you can see,  how much the Lock Level is improving even for a small amount of adjustment of the X and Y shims.    I recorded this a few days ago.

After watching this, I hope you are convinced that spending the extra few seconds is very well worth it, to get respectable NMR spectra, whether it is 1H or 13C or any other nucleus.

Effect of adjusting X Shim :

 

Effect of adjusting Y Shim :

 

Follow the above tip and make the Best Use of the spectrometer !

NMR Facility Manager

9.23.2022