Defects regulating of graphene ink for electrochemical determination of ascorbic acid, dopamine and uric acid

Li Fu; Aiwu Wang; Guosong Lai; Weitao Su; François Malherbe; Jinhong Yu; Cheng-Te Lin; Aimin Yu

doi:10.1016/j.talanta.2017.12.058

Author(s)

Li Fu
Guosong Lai
Weitao Su
François Malherbe
Jinhong Yu
Cheng-Te Lin
Aimin Yu

Related Research Unit(s)

Centre of Super-Diamond and Advanced Films

Detail(s)

Original language	English
Pages (from-to)	248-253
Journal / Publication	Talanta
Volume	180
Online published	20 Dec 2017
Publication status	Published - 1 Apr 2018

Link(s)

DOI	DOI https://doi.org/10.1016/j.talanta.2017.12.058 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85038955960&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(0d639da0-6335-4a1a-90c2-d5e11668583d).html

Abstract

A simple water immersing treatment has been established for regulating the electrocatalytic activity of commercial graphene ink. This process enables to remove additives in graphene ink and consequently expose the surface defects. A graphene ink coated glass has been fabricated as an example platform for simultaneous determination of ascorbic acid (AA), dopamine (DA), and uric acid (UA). Cyclic voltammetry studied indicated electrocatalytic reaction can be initiated after the additives leaching during the water immersing treatment. Under optimal conditions, the linear calibration curves were achieved in the range of 50–1000, 3–140, and 0.5–150 μM, with detection limits of 17.8, 1.44 and 0.29 μM for AA, DA, and UA, respectively. This work demonstrated that the removal of additives of the graphene ink after film coating could be applied as a simple and cost-effective electrochemical platform for sensing application.

Research Area(s)

Ascorbic acid, Defects regulating, Dopamine, Electrochemical sensor, Graphene ink, Uric acid

Citation Format(s)

[ RIS ] [ BibTeX ]

Defects regulating of graphene ink for electrochemical determination of ascorbic acid, dopamine and uric acid. / Fu, Li; Wang, Aiwu; Lai, Guosong et al.
In: Talanta, Vol. 180, 01.04.2018, p. 248-253.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Fu, L, Wang, A, Lai, G, Su, W, Malherbe, F, Yu, J, Lin, C-T & Yu, A 2018, 'Defects regulating of graphene ink for electrochemical determination of ascorbic acid, dopamine and uric acid', Talanta, vol. 180, pp. 248-253. https://doi.org/10.1016/j.talanta.2017.12.058

Fu, L., Wang, A., Lai, G., Su, W., Malherbe, F., Yu, J., Lin, C.-T., & Yu, A. (2018). Defects regulating of graphene ink for electrochemical determination of ascorbic acid, dopamine and uric acid. Talanta, 180, 248-253. https://doi.org/10.1016/j.talanta.2017.12.058

Fu L, Wang A, Lai G, Su W, Malherbe F, Yu J et al. Defects regulating of graphene ink for electrochemical determination of ascorbic acid, dopamine and uric acid. Talanta. 2018 Apr 1;180:248-253. Epub 2017 Dec 20. doi: 10.1016/j.talanta.2017.12.058

Fu, Li ; Wang, Aiwu ; Lai, Guosong et al. / Defects regulating of graphene ink for electrochemical determination of ascorbic acid, dopamine and uric acid. In: Talanta. 2018 ; Vol. 180. pp. 248-253.