Determination of Cs, Rb and Ba in neutron-actived biological materials

Abstract

In the present paper, the determinatlon of Cs, Rb and Ba in biological materials, including human bones, eggs, milk, meat and vegetables by neutron activation analysis is descrlbed. The proposed technique is based on the measurement of the long-üved radlolsotopes 131 Ba 134 Cs and 86 Rb with a Ge(Li) detector, after a simple radiochemical separation based on selective retention of these nuclides on HAP In 6M HF. Detection limíts of 0. 001 ppm can be achieved with 5% precisión. Data are given for replícate determinations in six different types of materials.be the primary process in isopropylbenzene dealkylation on 7 -irradiated silica-alumina.