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AuPd bimetallic nanoparticle-supported carbon nanotubes for selective detection of dopamine in the presence of ascorbic acid

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Abstract

A carbon nanotube-supported AuPd bimetallic nanoparticle (AuPd/CNT) nanocomposite modified glassy carbon (GC) electrode was fabricated and its catalytic properties towards dopamine (DA) in the presence of ascorbic acid (AA) were studied. AuPd/CNTs were synthesized by the simple chemical reduction of Au and Pd salt precursors with CNTs. Under the optimal detection conditions, the amperometric it curve shows a linear response of DA over the range from 0.2 μM to 50 μM with a detection limit of 83 nM (S/N = 3) on AuPd/CNTs–Nafion/GCE. Furthermore, the developed sensor showed excellent anti-interference, reproducibility and stability, and was also proven to be feasible for DA determination in human urine samples, indicating the potential application of this nanocomposite for real sample analysis.

Graphical abstract: AuPd bimetallic nanoparticle-supported carbon nanotubes for selective detection of dopamine in the presence of ascorbic acid

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Publication details

The article was received on 03 Apr 2017, accepted on 30 Apr 2017 and first published on 03 May 2017


Article type: Paper
DOI: 10.1039/C7AY00875A
Citation: Anal. Methods, 2017, Advance Article
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    AuPd bimetallic nanoparticle-supported carbon nanotubes for selective detection of dopamine in the presence of ascorbic acid

    H. Yang, D. Liu, X. Zhao, J. Yang, H. Chang, R. Xing and S. Liu, Anal. Methods, 2017, Advance Article , DOI: 10.1039/C7AY00875A

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