镉(Ⅱ)-半胱氨酸-组氨酸络合物研究  

Study on Complex of Cadmium(Ⅱ)With, Cysteine-Histidine

作　　者：周静[1] 雷金玲[1] 陈智[1] 

机构地区：[1]清华大学化工系

出　　处：《分析化学》1992年第8期914-917,共4页Chinese Journal of Analytical Chemistry

摘　　要：本文用pH电位滴定法测定了镉(Ⅰ)-半胱氨酸-组氨酸的各级络合物稳定常数,确定了络合物主要存在形态,通过核磁共振和红外光谱分析了其结构。The Stability constant of the complex of Cd(Ⅱ)-cysteine (Cys)-Histidine (His) has been determined with the method of pH potentiometer titration. The chief form of the complex in the system of Cd (Ⅱ)-Cys-His(M-H_2L-H_3L') is MHLL', and its stability constant lg βMHLL' iS calculated to be 28.95. It is inferred by nuclear magnetic resonance and infrared absorption spectrometry that the MHLL'structure is

关 键 词：镉 半胱氨酸 组氨酸 络合物 

分 类 号：O614.242[理学—无机化学]