Study on Trace Lead Ion-Exchange on Nation-Modified Electrode and Its Determination

Chem. J. Chinese Universities ›› 1990, Vol. 11 ›› Issue (3): 236.

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Study on Trace Lead Ion-Exchange on Nation-Modified Electrode and Its Determination

Jin Litong, Liu Bin, Fang Yuzhi

Department of Chemistry, Baal China Normal University, Shanghai

Received:1988-07-19 Online:1990-03-24 Published:1990-03-24

Abstract

Abstract: Using the properties of Nation membrane making ion-exchagne with trace Pb( Ⅲ) in solution, this paper describes the method of Nafion modified electrodes concentrated and determination of Pb( Ⅱ), and discusses its reaction mechanism. There is a linear rlationship between the concentration and peak height in the range of 13-133 ng/mLfor Pb( Ⅱ ), the variation coefficient for the method is 3. 5%, the detection limit of Pb( Ⅱ) is 6 ng/mL.

Key words: Nafion-modified electrode, Ion-exchange concentration of Pb ( Ⅱ ), Determination of Pb ( Ⅱ ), Anodic stripping voltammetry

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Jin Litong, Liu Bin, Fang Yuzhi . Study on Trace Lead Ion-Exchange on Nation-Modified Electrode and Its Determination[J]. Chem. J. Chinese Universities, 1990, 11(3): 236.

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Study on Trace Lead Ion-Exchange on Nation-Modified Electrode and Its Determination

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