三元混配化合物的极谱研究──Phosphonic-、Amino-acid-Eu体系稳定性  

Polarorgraphic studies of mixed-ligand complexes of metals with organism

作　　者：刘新文[1] 卢小泉[2] 

机构地区：[1]天水师范学院化学系,甘肃天水741001 [2]西北师范大学化工化学学院,甘肃兰州730000

出　　处：《天水师范学院学报》2001年第2期40-45,共6页Journal of Tianshui Normal University

摘　　要：以脉冲极谱法研究了用有机磷酸和氨基酸作为配体与Ｅｕ（Ⅲ）形成两元及三元体系配合物的极谱行为．模拟生理条件，在μ＝０．１（ＮａＣｌ）、Ｔ＝３１０±０．２Ｋ条件下，电极过程为准可逆；测定了配合物的稳定常数；讨论了复杂体系各配合物稳定性差异及其影响因素．Binary or ternary complexes of Europium with phosphoric acids and amino acids were studied by pulse Polarographic method. The reduction was quasi-reversible and diffusion-controlled under imitatively physiological condition at μ=0.1 (NaCl), T=310±0.2K. The stability constants of all these systems were determined. The stability and the factors which affect the mixed complexes stability are discussed.

关 键 词：有机酸 三元配合物 稳定常数 极谱法 铕 

分 类 号：O614.338[理学—无机化学] O641.4[理学—化学]