Very soon, all the instruments in the UChicago Chemistry NMR Facility will be equipped with autosamplers, including the manually-operated ones. Two questions may come to mind: How? Why?
The software running 500-3 and which will be running 600-1 is version 4.2.0 of Topspin. It works mostly the same as the Topspin we’ve been using, but there are some important differences to note. This post covers some of the key differences you’ll encounter right away.
Here’s a tip for you when acquiring long experiments manually: use the Autoshim feature. Located in the BSMS control window, clicking “Start” will ensure your shim quality stays good over long periods (~4+ hours). But when you’re done, be sure to click “Start” again to toggle it off, or else it’ll continue operating when the next user is trying to run, which will surprise them and give them inconvenience.
Tweaks have been made to all default 1H and 13C 1D and 2D experiment parameter sets so they have been tested as effective and are the same on all spectrometers. If you have a 10mg properly-prepared sample, you are assured of getting good data using default parameters with these experiments no matter which instrument you use.
500-1 is open, supporting walkup experiments in Searle. It’s outfitted with a different probe to provide better 13C sensitivity and capabilities of observing 31P, 11B, 195Pt, and more. Spectra are shown for a standard 10 mg/mL sample of carvone to provide a visual basis for comparison.