In order to better compare NMR spectra collected at different field strength, it has become custom to convert frequency to a dimensionless quantity called chemical shift with unit ppm (parts per ...

Please prepare your samples in the designated area or under a hood, and not on top of the magnet. The chemical shifts (d) of solvent signals observed for 1 H NMR and 13 C NMR spectra are listed in the ...

Solid-State NMR has become an important method in zeolite research ... Such model studies are usually performed by the investigation of a large number of model compounds (e.g. to establish a chemical ...

Since it is common to use spectrometers with different magnetic field strengths, the decision was made to express the ...

Principle component analysis (PCA) was used to extract components from the solid-state nuclear magnetic resonance (NMR) spectra of bacterial cellulose (BC). Polymers such as cellulose have several ...