Anshan Normal Coll, Dept Phys, Anshan 114005, Peoples R China
; Peking Univ, Sch Pharmaceut Sci, Dept Biol Chem, Beijing 100083, Peoples R China
; Dali Coll, Dept Chem, Dali 671000, Peoples R China
; Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100039, Peoples R China
Small angle x-ray scattering (SAXS) technique was used to analyze the microstructure of osteoporotic rats' models. Comparing with normal rats' bone structure, the specific inner surface and the volume fraction of inorganic mineral's particles in osteoporotic rats reduced. It shows that small particles of inorganic mineral in osteoporotic rats dissolved.