| SEMIDIFFERENTIAL ELECTROCHEMICAL STRIPPING ANALYSIS FOR THE DETERMINATION OF TRACE HEAVY METALS IN SEAWATER |
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| 作者姓名： | 莫金垣 蔡沛祥 张哲 区炳燊 |
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| 作者单位： | Zhongshan University，Guangzhou，Zhongshan University，Guangzhou，Zhongshan University，Guangzhou，Zhongshan University，Guangzhou |
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| 摘 要： | A new voltammetric technique has been described for the determination of trace Cu, Pb, Cd and Zn in seawater by semidifferential electrochemical stripping analysis, in which the semiderivative, e, of the stripping current, i, is measured as a function of electrode potential, at a rotating thin mercury film glassy carbon electrode formed in situ. The optimun conditions are reported. It is demonstrated that the technique has more merits than that of the ordinary linear sweep anodic stripping voltammetry, greatly enhances the sensitivity and resolution and shortens the time of pre-electrolysis.
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| 收稿时间： | 1981/4/27 0:00:00 |
SEMIDIFFERENTIAL ELECTROCHEMICAL STRIPPING ANALYSIS FOR THE DETERMINATION OF TRACE HEAVY METALS IN SEAWATER |
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| MO JINYUAN,CAI PEIXIANG,ZHANG ZHE and OU BINGSHEN.SEMIDIFFERENTIAL ELECTROCHEMICAL STRIPPING ANALYSIS FOR THE DETERMINATION OF TRACE HEAVY METALS IN SEAWATER[J].Acta Oceanologica Sinica,1983,2(2):235-248. |
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| Authors: | MO JINYUAN CAI PEIXIANG ZHANG ZHE and OU BINGSHEN |
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| Institution: | Zhongshan University, Guangzhou |
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| Abstract: | A new voltammetric technique has been described for the determination of trace Cu, Pb, Cd and Zn in seawater by semidifferential electrochemical stripping analysis, in which the semiderivative, e, of the stripping current, i, is measured as a function of electrode potential, at a rotating thin mercury film glassy carbon electrode formed in situ. The optimun conditions are reported. It is demonstrated that the technique has more merits than that of the ordinary linear sweep anodic stripping voltammetry, greatly enhances the sensitivity and resolution and shortens the time of pre-electrolysis. |
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