稀土胆酸络合物在凝胶中的周期沉淀现象

Phenomena of Periodic Precipitation in Rare Earth CholateGel Systems

在稀土胆酸凝胶扩散体系中观察到了周期沉淀现象，并用红外光谱（ＦＴＩＲ）和扩展Ｘ射线原子精细结构光谱（ＥＸＡＦＳ）对图形沉淀进行了表征。结果表明：稀土离子与胆酸反应容易产生周期沉淀，沉淀的成分与相应的络合物相近。

The phenomena of periodic precipitation occurred in gel medium were observed in rare earth cholate systems. The complexes of the pattern are characterized by FTIR and EXAFS spectroscopy methods. The experimental results indicate that rare earth ions are tend to produce periodic precipitation and the precipitation of the pattern was just the corresponding rare earth cholate complexes.