The screening of an applied magnetic field experienced by a nucleus due to the electron cloud around an atom or molecule.
Chemical shift is reported in ppm.
In NMR, the term generally refers to the radiofrequency coil. A mathematical operation between two functions. A form of spectroscopy in which a constant amplitude electromagnetic wave is applied. Transformation A change in the axes used to represent some spatial quantity. A magnetic field gradient used to dephase transverse magnetization.