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L—组氨酸和色氨酸三元体系中稀土(Ⅲ),钙(Ⅱ)的化学形态 总被引:1,自引:0,他引:1
在模拟生理条件下(37℃,I=0.15mol/LNaCl),用pH电位滴定与计算机模拟计算相结合的方法研究了镨(Ⅲ)、钆(Ⅲ)、铽(Ⅲ)、镱(Ⅲ)4tkh tqd ffffyb bb t qgh (Ⅱ)、锌(Ⅱ)离子在L-组氨酸、色氨酸三元体系中的化学形态。讨论了稀土(Ⅲ)、钙(Ⅱ)和锌(Ⅱ)的物种分布特点。 相似文献
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L-天冬氨酸、精氨酸多元体系中希土(Ⅲ)和钙(Ⅱ)化学形态 总被引:1,自引:0,他引:1
Rare earth (Ⅲ)-Asp-Arg and Ca(Ⅱ)-Asp-Arg systems were studied by potentiometric titration under physiological conditon. The species of each system were determined. The distribution of Tb(Ⅲ) and Ca(Ⅱ) species was discussed, as well as in the quaternary system of Tb(Ⅲ)-Ca(Ⅱ)-Asp-Arg. 相似文献
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