ELECTROPHORETIC NMR

NMR experiments in the presence of the sample of an electric direct cu rrent in (DCNMR) are now feasible. Thus in complex electrolyte solutio ns or in fluid macromolecular mixtures distinct charge-carrying specie s are observable and the sign of their charge and their electrophoreti c mobilities can be measured. The author, one of the pioneers in this area, describes the principles and methods of electrophoretic NMR (ENM R), discusses practical experimental problems and their solutions, and gives an overview of actual measurements, applications, and possible future developments of this new class of NMR experiments.