Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (6): 847.

• Articles • Previous Articles     Next Articles

Studies on the Coodination of Tb(Ⅲ) and Ca(Ⅲ)with Amino Acid Under the Physiological condition

ZHAO Shu-Fu, WANG Zeng-Lin, LIU Qi-Min, NIU Chun-Ji, NI Jia-Zuan   

  1. Laboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1994-08-18 Revised:1994-11-23 Online:1995-06-24 Published:1995-06-24

Abstract: Tb(Ca)-glycine,Tb(Ca)-alanine, Tb(Ca)-glycine-alanine systems were studied by potentiometry(37℃, I=0. 15 mol/L NaCl).The stability constants of complexes and distribution of species in ternary system were obtained.The results show Ca<Tb for the stability of binary complexes,Ca>Tb for the ternary complexes.The species convert each other with changing pHvalues.

Key words: Terbium, Calcium, Amino acid complexes

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