GENERATION OF RADIOISOTOPES

摘要

A method of preparing a liquid containing radioisotope for radiopharmaceutical application comprises eluting a radioactive daughter isotope from a parent isotope which is adsorbed on an adsorbent by means of a physiological solution, wherein a fission- produced parent isotope is used and the eluate comprising a daughter isotope is purified with a cation-exchange material. The method produces a liquid containing a radioisotope having an exceptionally high chemical, radiochemical and radionuclidic purity in a high yield. An isotope generator system suitable for use of the said method and a reservoir for said generator system is also described and claimed.