Issue 21, 2017

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

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

Supplementary files

Article information

Article type
Paper
Submitted
03 Apr 2017
Accepted
30 Apr 2017
First published
03 May 2017

Anal. Methods, 2017,9, 3191-3199

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, 9, 3191 DOI: 10.1039/C7AY00875A

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