A STUDY ON HETEROGENEOUS ISOTOPIC EXCHANGE REACTION

In this paper the labelling of four radiopharmaceuticals, 6-iodocholesterol, o-iodohip-puric acid, rosebengal and fatty acid is accomplished with hydrothermal melt method. The kinetic of heterogeneous isotopic exchange reaction in hydrothermal melt state is studied and the results show that this labelling method gives high yield, rapid rate and good purity.