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对内蒙古地区天然水中有机配体与铅的表观络合容量（Ｃ．Ｃ）进行了阳极溶出伏安法（ＡＳＶ）测定，并计算总条件稳定常数（Ｋ）和络合容量指数（Ｉ）；对电极的线性关系和重现性、络合平衡时间、ｐＨ等因素做了半定量讨论．在电极检测下限为１０－９ｍｏｌ·Ｌ－１铅时，采用１０ｍｉｎ平衡时间为宜，ｐＨ等是影响络合反应的主要因素．在天然ｐＨ值下，铅的表观络合容量为呼伦湖最大，乌梁素海最小
The anodic stripping voltammetry (ASV) was used to determine the apparent complexation capacity (C.C) of organic ligands and lead in natural waters in Inner Mongolia, and the total condition stability constants (K) and complexing capacity index (I) The semi-quantitative discussion of the linearity and reproducibility of the electrode, the equilibrium time of the complexation, pH and other factors was carried out. When the lower limit of electrode detection is 10-9mol·L-1 lead, it is appropriate to use 10min equilibrium time, pH and other factors are the main factors affecting the complexation reaction. Under natural pH value, the apparent complexing capacity of lead is the largest in Hulun Lake and the least in Wuliangsuhai