Studies on the Complex States of Heavy Metal Ions in Seawater (Ⅰ)--2nd Order Derivative Convolution Stripping Voltammetry at HMDE

Abstract

Abstract: The relationship between the complex stability constants and peak potential of 2nd order derivative convolution anodic stripping voltammetry at HMDE has been established. The expression is as follows: The shift of peak potential varies with the concentration of the ligand, the differences between the peak potential of free metal ions and that of the complex ions are measured at constant ionic strength and various concentrations of the ligand.

Key words: Complex state, Stability constant, 2nd order derivative convolution voltammetry, Stripping voltammetry

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Mo Jin-yuan, Cai Pei-xiang, Zheng Jia-long, Zheng Pei-sheng, Liang Hao-bo . Studies on the Complex States of Heavy Metal Ions in Seawater (Ⅰ)--2nd Order Derivative Convolution Stripping Voltammetry at HMDE[J]. Chem. J. Chinese Universities, 1991, 12(4): 450.

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Studies on the Complex States of Heavy Metal Ions in Seawater (Ⅰ)--2nd Order Derivative Convolution Stripping Voltammetry at HMDE

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