摘要
Rare earth ions possess some special function in biological body. Amino acids are the basic units of protein. It is reported that La（Gly）<sub>3</sub>Cl<sub>3</sub>·3H<sub>2</sub>O has antitumor action. Therefore, study on the complexes of rare earth with amino acids is significant. Phase equilibrium research can provide the theoretical basis for the preparation of new typical compounds. The phase diagrams on ternary system of RECl<sub>3</sub>-Ala-H<sub>2</sub>O and RE（ClO<sub>4</sub>）3-AlaH<sub>2</sub>O have been presented in literature. This note provides the investigation of solubility properties of RE（NO<sub>3</sub>）<sub>3</sub>-Ala-H<sub>2</sub>O （RE=La, Sm, Dy, Y） systems at 35℃ and the
基金
Project supported by the National Natural Science Foundation of China
