钆在柠檬酸（L—天冬氨酸）,L—丝氨酸（L—苏氨酸）三元水相体系中的化学形态

摘要

cqvip:The stability constants of ternary complexes of Gd(Ⅲ) with citric( L aspartic) acid and L serine( L threonine) under the synthetic biological conditions of temperature and background electrolyte (37 ℃, 0.15 mol/L NaCl)were obtained by potentiometric titration. The distributions of Gd(Ⅲ) species in these systems have been discussed.