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.
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
关键词
有机酸
三元配合物
稳定常数
极谱法
铕
phosphoric acid
ternary complex
stable constant: polarography
Europium