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Dissolved Cu(II) speciation in unpolluted soil solutions of a planosolic horizon

机译：平面土壤未污染土壤溶液中溶解的Cu（II）形态

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Dissolved Cu(II) speciation in unpolluted soil solutions from different horizons was studied using differential pulse anodic stripping voltammetry (DPASV). Three sites were selected according to topography and monitored for three years. Experiments evidence Cu(II) can be bound by DOM (Dissolved Organic Matter) through complexation and/or adsorption reactions. The complexation capacity and the corresponding conditional stability constant were determined for complexation reactions. The adsorbing sites were titrated. A potential binding coefficient was calculated to compare both types of reactions. Results show adsorption is less frequent than complexation but exhibits higher binding coefficient.
机译：使用差分脉冲阳极溶出伏安法（DPASV）研究了不同水平的未污染土壤溶液中的溶解铜（II）形态。根据地形选择了三个地点，并进行了三年监测。实验证明，Cu（II）可以通过络合和/或吸附反应与DOM（溶解有机物质）结合。测定络合反应的络合能力和相应的条件稳定性常数。吸附位点被滴定。计算潜在的结合系数以比较两种类型的反应。结果表明，吸附比络合要少，但结合系数更高。

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