| Formation Equilibria of Ternary Metal Complexes with Citric Acid and Glutamine （Alanine） in Aqueous Solution |
| |
| 引用本文： | 王进平,牛春吉,杨魁跃,倪嘉缵. Formation Equilibria of Ternary Metal Complexes with Citric Acid and Glutamine （Alanine） in Aqueous Solution[J]. 中国稀土学报(英文版), 2004, 22(1): 183-186 |
| |
| 作者姓名： | 王进平 牛春吉 杨魁跃 倪嘉缵 |
| |
| 作者单位： | KeyLaboratoryofRareEarthChemistryandPhysics,ChangchunInstituteofAppliedChemistry,ChineseAcademyofSciences,Changchun130022,China |
| |
| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina(29971029)andKeyLaboratoryofRareEarthChemistryandPhysics,ChangchunInstituteofAppliedChemistry,ChineseAcademyofSciences |
| |
| 摘 要： | The species and their formation constants in the ternary systems were obtained by the Scogs2 software from potentiometric titration data. The Comics software was used to calculate the distribution of species in the ternary systems.MLXH, MLXH2 and MLXH3 are the common species in these systems. The coordination behaviors of the rare earths are very similar and their stability is closely matched. The ternary rare earth complexes are more stable than the corresponding ternary complexes of calcium. The ternary zinc complex with glutamine as the secondary ligand is more stable than the corresponding complexes of rare earths, but the ternary complex with alanine as the secondary ligand shows an. inverse trend.The distributions of species in the ternary systems vary with pH changing. A prediction can be made that exogenous rare earths can affect the species of Ca and Zn in human body.
|
| 关 键 词： | 柠檬酸 谷酰胺 丙氨酸 水溶液 三元合金 稀土 锌 微量元素 |
Formation Equilibria of Ternary Metal Complexes with Citric Acid and Glutamine (Alanine) in Aqueous Solution |
| |
| Wang Jinping,Niu Chunji,Yang Kuiyue,Ni Jiazuan. Formation Equilibria of Ternary Metal Complexes with Citric Acid and Glutamine (Alanine) in Aqueous Solution[J]. Journal of Rare Earths, 2004, 22(1): 183-186 |
| |
| Authors: | Wang Jinping Niu Chunji Yang Kuiyue Ni Jiazuan |
| |
| Abstract: | The species and their formation constants in the ternary systems were obtained by the Scogs2 software from potentiometric titration data. The Comics software was used to calculate the distribution of species in the ternary systems. MLXH, MLXH 2 and MLXH 3 are the common species in these systems. The coordination behaviors of the rare earths are very similar and their stability is closely matched. The ternary rare earth complexes are more stable than the corresponding ternary complexes of calcium. The ternary zinc complex with glutamine as the secondary ligand is more stable than the corresponding complexes of rare earths, but the ternary complex with alanine as the secondary ligand shows an inverse trend. The distributions of species in the ternary systems vary with pH changing. A prediction can be made that exogenous rare earths can affect the species of Ca and Zn in human body. |
| |
| Keywords: | physiology calcium zinc speciation potentiometric titration rare earths |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
