Among the separation methods of molybdenum from uranium, the difference in volatility of their chlorides at relatively high tem peratures could also be conveniently exploited. This concept is adopted to have a standardization of a method for providing abundant quantity,with a high chemical purity of 99 Mo, which is an important radioisotope used in the nuclear medicine. The approach to the standardization consists of identifying the necessary parameters to work at high temperatures and efficient collection of molybdenum. These operations are designed to be carried out in a well ventilated lead-shielded plant with remote facilities.