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应用离子敏感电极和示差脉冲极谱两种实验技术,对镉-甘胺酸络合物体系进行研究,并通过一种联合的数学处理方法,使两种实验数据可以用来设计金属络合物体系模型及计算络合物的稳定常数.在相同的实验条件下(如总的络合剂浓度和总的金属离子浓度相同),两种实验技术将会得到几乎相同的实验络合物形成曲线和理论络合物形成曲线.将联合的数学处理方法应用于镉-甘胺酸络合物体系,不但验证了文献报道的三种络合物 ML、ML_2和 ML_3的存在,还发现了两种新的络合物 MHL 和 ML_2(OH),并且优化得到了这五种络合物的稳定常数.
Two experimental techniques, ion-sensitive electrode and differential pulse polarography, were used to study the Cd-Gly complex system and through a combined mathematical approach, two experimental data could be used to design the metal complex System model and calculation of the stability constants of the complexes.All the experimental techniques will yield nearly the same experimental complex formation curves under the same experimental conditions (eg total complexing agent concentration and total metal ion concentration) And the formation of the theoretical complex curve.The combination of mathematical methods applied to cadmium-glycine complex system, not only verified the existence of the three complexes ML, ML_2 and ML_3 reported in the literature, also found two New complexes MHL and ML_2 (OH), and the stability constants of these five complexes were optimized.