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本文推导了络合体系中悬汞电极二阶导数卷积阳极溶出峰电势与络合物累积稳定常数的关系式,在模拟海水离子强度溶液中,测定了一系列简单金属离子及其络合物的溶出峰电势差,用电子计算机进行数学回归分析作曲线拟合,求得了Cd(Ⅱ)-SO_4~2络合体系的各级累积稳定常数,并对海水中镉(Ⅱ)的存在形态作了综合估算。
In this paper, we derive the relationship between the second peak elution peak potential of complex mercury electrode and the cumulative stability constant of the complex in the complex system. In the simulated seawater ionic strength solution, a series of simple metal ions and their complexes The peak potential difference of Cd (Ⅱ) -SO_4 ~ 2 complexes was calculated by mathematical regression fitting curve fitting with the electronic computer. The cumulative stability constants of Cd (Ⅱ) -SO_4 ~ 2 complex at various levels were obtained and the existing forms of Cd Comprehensive estimate.