The classical chemistry like precipitation technique is relevant even in modern days trans-disciplinary research from the
view point of green chemistry. A definite demand of no-carrier-added (nca) cadmium tracers, namely, 107,109Cd, has been realized for diverse applications. Development of efficient separation technique is therefore important to address
the purity of the tracers for various applications. No-carrier-added 107,109Cd radionuclides were produced by bombarding natural silver target matrix with 13 MeV protons, which gave ~15 MBq/μA h yield
for nca 107Cd. The nca cadmium radionuclides were separated from the natural silver target matrix by precipitating Ag as AgCl. The developed
method is an example wherein green chemistry is used in trans-disciplinary research. The method is also simple, fast, cost
effective and environmentally benign.