A system for automatically diluting and dividing radioisotopes is introduced. Its executive equipment is composed of step motors

exact screws

and precise syringes. In addition

the programmed software makes all these parts work together properly

stably and effectively. The system satisfies the request of iatrical radioisotope diluting and dividing

that is

with high precision

zero-pollution

and so on. The tryout of this system has achieved good result.