ASTATINE SOLUTION AND METHOD FOR PRODUCING SAME

摘要

The present invention aims to provide an astatine solution that can be used in RI internal radiotherapy and the like for the treatment of thyroid gland disease and the like, and a production method thereof.The present invention provides a method for producing a solution containing211At-(astatide ion) at a high radiochemical purity by using211At obtained by a nuclear reaction as a starting material, including a step of adding a reducing agent to a solution containing an impurity derived from211At; and a solution containing211At-(astatide ion) at a radiochemical purity of not less than 30%.