Preparation of Film Modified Electrode by Electrochemical Method and Its Application for Anodic Stripping Voltammetric Determination of Pb(Ⅱ)

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (9): 1192.

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Preparation of Film Modified Electrode by Electrochemical Method and Its Application for Anodic Stripping Voltammetric Determination of Pb(Ⅱ)

ZHUANG Xiu-Run, XU Jin-Rui

Department of Applied Chemistry, Huaqiao University, Quanzhou, 362011

Received:1991-01-28 Revised:1992-04-13 Online:1992-09-24 Published:1992-09-24

Abstract

Abstract: In this paper we described the glassy carbon electrode treated by an electrochemical method in an aqueous solution containing the o-aminophenol,formaldehyde and sodium hydroxide.The sensitivity of the treated electrode for Pb²⁺ is about 60 times higher than that of untreated glassy carbon electrode.The electrode has a good reproducibility with a relative standard deviation of 3.7%(n=10).The anodic stripping peak height depends linearly on the Pb²⁺ concentration up to 10 ng/mL,and the quantitative limit with this electrode is 0.2 ng/mL.

Key words: Lead, Glassy-carbon electrode, Anodic stripping voltammetry, o-Aminophenol

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ZHUANG Xiu-Run, XU Jin-Rui . Preparation of Film Modified Electrode by Electrochemical Method and Its Application for Anodic Stripping Voltammetric Determination of Pb(Ⅱ)[J]. Chem. J. Chinese Universities, 1992, 13(9): 1192.

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Preparation of Film Modified Electrode by Electrochemical Method and Its Application for Anodic Stripping Voltammetric Determination of Pb(Ⅱ)

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