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Citation: Niu Chunji, Zhao Shufu, Wang Zenglin, Ma Jianfang, Zhao Hui, Ni Jiazuan. Study on Tb(Ⅲ),Ca(Ⅱ)Ternary Complexes with L-Glutamic Acid and L-Threonine[J]. Chinese Journal of Applied Chemistry, ;1996, 13(3): 93-95. shu

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

1.
Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Chdngchun 130022

Received Date: 18 August 1995
Available Online: 5 January 1996
Fund Project:

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.
- terbium,
- calcium,
- L-threonine,
- L-glutamic acid,
- ternary complex
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