Abstract: STUDY OF THE ADSRPTION BEHAVIOR OF FISSION PPODUCTS ON MUD AND SAND IN YELLOW PIVER USING MULITRACERZHANG XIANG；YIN XINMIN；LI WENXIN；QIN ZHI ZHAO LILI；WUD INGQING；SUN TONGYU（Institute of Modern Physics，Chinese Academy of Sciences，Lanzhou 730000）ABSTRACT The adsorption behavior of the fission prod ucts frorn uranium on rnud andsand in YellowRiver is studied、using radioactive multitracer techniques in conjunction with γ-ray spectroscopy.The adsorption ratios are determined for 9 fission products. The experirnental result is comparedwith reference＇s data ；and is discussed in terms of electron binding energies of the elements. Key words Multitracer Fission products Adsorption ratio Electron binding energy