NDLI: A glassy carbon electrode modified with electrochemically reduced graphene for simultaneous determination of guanine and adenine

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A glassy carbon electrode modified with electrochemically reduced graphene for simultaneous determination of guanine and adenine

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A glassy carbon electrode modified with electrochemically reduced graphene for simultaneous determination of guanine and adenine

Content Provider	Royal Society of Chemistry (RSC)
Author	Xu, Maotian Liang, Yong Zhu, Xiaohua Zeng, Lixuan Nan, Junmin
Copyright Year	2012
Abstract	In this paper, the direct electrochemical oxidation and differential pulse voltammetry (DPV) determination of guanine and adenine are studied by using an electrochemically reduced graphene oxide (er-GO) modified glassy carbon electrode (er-GO/GCE). Compared to the GCE and the GO/GCE, the as-prepared er-GO/GCE shows excellent electrocatalytic activity towards guanine and adenine, with an increase of oxidation current along with a negative shift of oxidation potential. Using the as-prepared er-GO/GCE, the simultaneous determination of guanine and adenine is successfully carried out, and the detection limits (based on S/N of 3) for guanine and adenine are 1.5 × 10−7 mol L−1 and 2.0 × 10−7 mol L−1, respectively. In addition, this er-GO/GCE exhibits a high selectivity, reproducibility and stability, and also can be used for the detection of guanine and adenine in the thermally denatured calf thymus DNA and urine, showing its promising application in the analysis of real samples.
Starting Page	2935
Ending Page	2939
Page Count	5
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	4
Issue Number	9
Journal	Analytical Methods
DOI	10.1039/c2ay25422k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Urine Electrode Graphene DNA Electrochemistry Adenine Carbon Differential pulse voltammetry Guanine Thymus
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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