【摘要】 本文用半微分电化学溶出与预平衡络合滴定相结合的方法测定海水的表观铜络合容量(CuACC),同时得到天然螯合剂与铜络合的条件生成常数K’。长江口区CuACC值的变化规律主要受控于河水和海水的物理混合过程,河水的CuACC值明显高于海水。更多还原

【Abstract】 A method is suggested of using simidifferential anodic stripping technique combined with "pre-equilibrian" complexometric titration for estimating the apparent copper complexing capacity CuACC of the sea water and the conditional formation constants of copper-natual organic ligand.In the mixing zone of the changjiang Estuary, CuACC of the surface water decreases when the salinity increases. In the zone of 29°-32°N, 122°-125°E, the CuACC of the sea water ranges from 0.09 μM to 0.14 μM, and the IgK’ from 7.6 to 8.7.更多还原