| 电位溶出装置的组装及其性能测试 |
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| 引用本文： | 刘庆洲,韩树波,耿新玲,李秋菊,刘文凯.电位溶出装置的组装及其性能测试[J].河北科技大学学报,1997(2). |
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| 作者姓名： | 刘庆洲 韩树波 耿新玲 李秋菊 刘文凯 |
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| 作者单位： | 河北科技大学(中校区)环境工程系，河北科技大学(中校区)环境工程系，河北轻化工学院环境工程系，河北轻化工学院环境工程系，河北轻化工学院环境工程系 石家庄 050018，石家庄 050018，1995届毕业生，1995届毕业生，1995届毕业生 |
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| 摘 要： | 利用电解仪、电位计和记录仪等组装的电位溶出装置,用于教学实验,可直观地诠释电位溶出分析法的基本原理。用该装置,Cd~(2+),In~(3+),Pb~(2+)三种离子可以同时测定,分辨能力良好。在0.5mol·L~(-1)硝酸钾底液中测定Cd~(2+)时,以旋转玻碳电极为工作电极,于-1.0V(vs·Ag/AgCl电极)预电解4min,静止溶出,Cd~(2+)浓度在5～65μg·L~(-1)内,线性回归方程y=0.375+0.85x,相关系数r=0.9997,相对标准偏差RSD=4.09％。
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| 关 键 词： | 电位溶出法 电位溶出装置 镉 铟 铅 |
Assembly and Property Test of the Potential Stripping Apparatus |
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| Liu Qingzhou Han Shubo Geng Xinling Li Qiuju Liu Wenkai.Assembly and Property Test of the Potential Stripping Apparatus[J].Journal of Hebei University of Science and Technology,1997(2). |
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| Authors: | Liu Qingzhou Han Shubo Geng Xinling Li Qiuju Liu Wenkai |
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| Institution: | Liu Qingzhou Han Shubo Geng Xinling Li Qiuju Liu Wenkai Department of Environmental Engineering |
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| Abstract: | The potential stripping apparatus was assemblied by means of an electrolytic analyzer,a potentlometer and a recorder. The basic prlnciple of potential stripping method can be explained easily through teaching experiments by this apparatus. Three ions Cd2+,In3+and Pb2+ can be determined si-multanebusly in this apparatus. In the base solution of 0. 5 mol/L KNOs ,Cd2+ was determined by way of a step of preelectrolysis and accumulation at the potential -0.0 Volt (vs. Ag/AgCl) and a following step of static stripping with a working electrode of rotating glassy carbon. The linear regression eguation was y = 0. 375 + 0,85.x,with a correlation coefficient(r) 0. 999 7 and a relative standard derivation(RSD) 4. 09% within the experimental range. |
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| Keywords: | potential stripping method potential stripping apparatus cadmium indium lead |
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