Determination of trace amounts of Cu2+ based on phytic acid-polypyrrole nanocomposites by differential pulse anodic stripping voltammetry

Wang Nan; Dai Hongxiu; Wang Donglei; Lin Meng; Ma Houyi

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Determination of trace amounts of Cu2+ based on phytic acid-polypyrrole nanocomposites by differential pulse anodic stripping voltammetry

Wang Nan #,Dai Hongxiu,Wang Donglei,Lin Meng,Ma Houyi *

School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, China

*Correspondence author

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Funding: National Research Foundation for the Doctoral Program of Higher Education of China （No.20120131110009）, Fundamental Research Funds of Shandong University（No.2015HW019）, National Natural Science Foundation of China（No.21373129）

Opened online:14 June 2016

Accepted by: none

Citation: Wang Nan,Dai Hongxiu,Wang Donglei.Determination of trace amounts of Cu2+ based on phytic acid-polypyrrole nanocomposites by differential pulse anodic stripping voltammetry[OL]. [14 June 2016] http://en.paper.edu.cn/en_releasepaper/content/4696532

In this paper,This study reports a sensitive electro-analytical method for the determination of trace amounts of Cu2+ using a phytate functionalizedpolypyrrole nanocomposites modified glass carbon electrode.The phytic acid-polypyrrole (PA/PPy) nanocomposites were prepared by an electrostatic adsorption and ultrasonic mixing. The results showed that bothPPy and PA/PPy modi?ed glassy carbon electrodes have electrochemical responses towardCu2+.However, owing to the synergistic contribution betweenthe PPy and PA, the PA/PPymodi?edelectrode exhibited higher sensitivity than that of PPy modi?ed electrode.The PA/PPynanocomposites functionalized electrodes showed a good linear relationship with Cu2+ at concentration ranges of 10-60 μg L-1, andthe limit of detection(S/N = 3)was 1 μg L-1.In addition, the electrochemical sensor was appliedtoassay Cu2+in real water samples.

Keywords:Polypyrrole; Phytate; Nanocomposites; Copper ions; Electrochemical analysis

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