应用化学 ›› 1996, Vol. 0 ›› Issue (3): 93-95.

• 研究简报 • 上一篇    下一篇

铽、钙的L-谷氨酸和L-苏氨酸三元配合物的研究

牛春吉, 赵淑富, 王增林, 马建方, 赵晖, 倪嘉缵   

  1. 中国科学院长春应用化学研究所稀土化学和物理开放实验室 长春 130022
  • 收稿日期:1995-08-18 修回日期:1996-01-05 出版日期:1996-06-10 发布日期:1996-06-10
  • 基金资助:
    国家攀登计划;自然科学基金;北京大学稀土材料化学及应用国家重点实验室资助项目

Study on Tb(Ⅲ),Ca(Ⅱ)Ternary Complexes with L-Glutamic Acid and L-Threonine

Niu Chunji, Zhao Shufu, Wang Zenglin, Ma Jianfang, Zhao Hui, Ni Jiazuan   

  1. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Chdngchun 130022
  • Received:1995-08-18 Revised:1996-01-05 Published:1996-06-10 Online:1996-06-10

摘要: 生物体内是多种生物分子共存的复杂环境,三元配合物广泛存在,并表现了许多重要生物功能.氨基酸是生物体内一类普遍存在的生物配体.游离氨基酸可形成多种具有生物功能的多元配合物.

关键词: 铽, 钙, 苏氨酸, 谷氨酸, 三元配合物

Abstract: Tb(Ⅲ)/Ca(Ⅱ)-L-glutamic acid-L-threonine systems were studied at 37℃ and in solution with an ionic strength of 0.15 mol/L(NaCl)by potentiometric titration.The stability constants of Tb(Ⅲ),Ca(Ⅱ)complexes with L-glutamic acid and L-threonine were obtained.Results show that Tb(Ⅲ),Ca(Ⅱ)ternary complexes are the main species among all species in ternary systems and that Tb(Ⅲ)complexes are more stable than Ca(Ⅱ)complexes.

Key words: terbium, calcium, L-threonine, L-glutamic acid, ternary complex