| 阳极溶出法测定游离态金属过程中金属配合物解离动力学的计算机模拟 |
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| 引用本文： | 陶澍,胡海瑛.阳极溶出法测定游离态金属过程中金属配合物解离动力学的计算机模拟[J].环境科学学报,1999,19(6):595-590. |
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| 作者姓名： | 陶澍 胡海瑛 |
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| 作者单位： | 北京大学城市与环境学系,北京,100871 |
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| 摘 要： | 用计算机模拟了阳极溶出伏安法预电解过程中滞膜层中游离金属离子，游离配位体和配合物的转化及迁移过程。模拟结果证实，发生在滞膜层中的络和物解离过程是造成金属富集通量偏高的根本原因。测定偏差的大小与配合物解离常数，配位体浓度，物质迁移速率常数以及预电解时间等参数有关。
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| 关 键 词： | 阳极溶出 游离金属 形态测定 计算机模拟 |
| 收稿时间： | 1998/4/20 0:00:00 |
| 修稿时间： | 1998/7/16 0:00:00 |
Computer simulation of metal complex dissociation during free metal determination using anodic stripping voltam metry |
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| TAO Shu and HU Haiying.Computer simulation of metal complex dissociation during free metal determination using anodic stripping voltam metry[J].Acta Scientiae Circumstantiae,1999,19(6):595-590. |
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| Authors: | TAO Shu and HU Haiying |
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| Institution: | Departmentof Urban and Environmental Sciences, Peking University, Beijing 100871 and Departmentof Urban and Environmental Sciences, Peking University, Beijing 100871 |
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| Abstract: | The processes oftransformation and masstransfer occurringin stagnantfilm during deposition period of ASV measurementfor free metals were simulated using computer.The results revealed that the dissociation of metal complexin the stagnant film isthe primary reason causing the overestimation offree metalconcentration using ASVtechnique .The influences of a number of parameters on the magnitude of the overestimation error wereinvestigated .The computer simulated results were supported by experimen tal data. |
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| Keywords: | ASV free metal computersimulation stagnantfilm |
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