One-step Electrosynthesis of Poly(1,5-diaminonaphthalene)/Graphene Nanocomposite as Platform for Lead Detection in Water

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• 作者：T. Dung Nguyen ; T. T. Huyen Dang ; Hoang Thai ; L. Huy Nguyen ; D. Lam Tran ; B. Piro and M. C. Pham
• 刊名：Electroanalysis
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：28
• 期：8
• 页码：1907-1913
• 全文大小：1601K
• ISSN：1521-4109

文摘

A simple electrochemical methodology was described to elaborate a sensor based on poly(1,5-diaminonaphthalene)/reduced graphene oxide film onto platinum-patterned electrodes. The composite electrodes were investigated for Pb²⁺ determination using square wave anodic stripping voltammetry. Pb²⁺ was first reduced and preconcentrated onto the modified electrodes at −1.0 V, then a positive potential sweep was applied to oxidize Pb⁰. A well-defined stripping peak appeared at −0.5 V, which was used as analytical signal. The linear detection range was found from 200 ng L⁻¹ to 700 µg L⁻¹. Interferences with several other metal ions were evaluated.