Measurement of magnetic susceptibility and calculation of shape factor of NMR samples

A method for accurate measurement of magnetic susceptibility and determination of the shape factor in ail NMR tube is shown. The combination of accurate shape factor determination with susceptibility measurement leads to improved accuracy when measuring chemical shift. This is important for comparing samples in different solvents or under different conditions, such as temperature, solvent, and pH. (c) 2005 Elsevier Inc. All rights reserved.