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Determination of ascorbic acid by a gold–zinc Oxide Nanoparticle-Modified Glassy carbon electrode

Zhang, Yanli, Liu, Hongjun, Li, Haizhen, Chen, Meng, Pang, Pengfei, Wang, Hongbin, Wu, Zhan and Yang, Wenrong 2016, Determination of ascorbic acid by a gold–zinc Oxide Nanoparticle-Modified Glassy carbon electrode, Analytical Lltters, vol. 49, no. 14, pp. 2207-2222, doi: 10.1080/00032719.2016.1142557.

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Title Determination of ascorbic acid by a gold–zinc Oxide Nanoparticle-Modified Glassy carbon electrode
Author(s) Zhang, Yanli
Liu, Hongjun
Li, Haizhen
Chen, Meng
Pang, Pengfei
Wang, Hongbin
Wu, Zhan
Yang, WenrongORCID iD for Yang, Wenrong orcid.org/0000-0001-8815-1951
Journal name Analytical Lltters
Volume number 49
Issue number 14
Start page 2207
End page 2222
Total pages 16
Publisher Taylor & Francis
Place of publication Abingdon, Eng.
Publication date 2016-09-21
ISSN 0003-2719
1532-236X
Keyword(s) Ascorbic acid
electrochemical sensor
gold–zinc oxide nanoparticle
graphene
Summary .A novel electrochemical sensing platform was developed based on flower-like gold–zinc oxide core–shell nanoparticles and a graphene nanocomposite-modified glassy carbon electrode. The gold–zinc oxide core–shell nanoflowers were synthesized by seed growth and characterized by high-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy, and ultraviolet-visible absorption spectroscopy. The modified electrode provided good electrocatalytic properties, rapid response, high stability, and favorable reproducibility for determination of ascorbic acid. The performance of the sensor included a linear dynamic range from 1.0 × 10−7 to 6.0 × 10−4 M, a limit of detection of 3.9 × 10−8 M, and a sensitivity of 24.12 µA/mM. The nanocomposite also provided excellent selectivity and lower potential for the oxidation of ascorbic acid. The sensor was used for the determination of ascorbic acid in tablets with satisfactory results. This device provides rapid, simple, and selective determination of ascorbic acid.
Language eng
DOI 10.1080/00032719.2016.1142557
Field of Research 030199 Analytical Chemistry not elsewhere classified
030302 Nanochemistry and Supramolecular Chemistry
030199 Analytical Chemistry not elsewhere classified
039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Taylor & Francis
Persistent URL http://hdl.handle.net/10536/DRO/DU:30088479

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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