Citation: Li-ping Wu, Long Zhang, Li-min Lu, Xue-min Duan, Jing-kun Xu, Tao Nie. Graphene Oxide Doped Poly(hydroxymethylated-3,4-ethylenedioxythiophene)：Enhanced Sensitivity for Electrochemical Determination of Rutin and Ascorbic Acid[J]. Chinese Journal of Polymer Science, ;2014, 32(8): 1019-1031. doi: 10.1007/s10118-014-1484-z shu

Graphene Oxide Doped Poly(hydroxymethylated-3,4-ethylenedioxythiophene)：Enhanced Sensitivity for Electrochemical Determination of Rutin and Ascorbic Acid

Li-ping Wu ^1,2,3 ,
Long Zhang ⁴ ,
Li-min Lu ⁵ ,
Xue-min Duan ⁴ ,
Jing-kun Xu ⁴ ,
Tao Nie ⁵

1.
1. College of Science, Jiangxi Agricultural University, Nanchang 330045, China
2.
2. Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
3.
4.
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
5.
College of Science, Jiangxi Agricultural University, Nanchang 330045, China

Received Date: 19 November 2013
Revised Date: 4 January 2014

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 50963002, 51073074, 51272906, 51263010 and 51302117), Natural Science Foundation of Jiangxi Province (Nos. 2010GZH0041, 20122BAB213007) and Jiangxi Provincial Department of Education (Nos. GJJ11590, GJJ10678 and GJJ13258), Jiangxi Science Technology Normal University Innovation Fund of Postgraduates (YC2013-X25).

A novel graphene oxide doped poly(hydroxymethylated-3,4-ethylenedioxythiophene) (PEDOT-MeOH/GO) composite film was synthesized and utilized as an efficient electrode material for simultaneous detection of rutin and ascorbic acid (AA). PEDOT-MeOH/GO films were synthesized on glassy carbon electrode (GCE) by a facile one-step electrochemical approach and were characterized by scanning electron microscopy, UV-Vis spectroscopy, FTIR spectra and electrochemical methods. Then the PEDOT-MeOH/GO/GCE was applied successfully in the simultaneous detection of rutin and AA. The results showed that the oxidation peak currents of rutin and AA obtained at the PEDOT-MeOH/GO/GCE were much higher than those at the traditional conducting polymer PEDOT/GO/GCE, PEDOT-MeOH/GCE, PEDOT/GCE and bare GCE. Under optimized conditions, the linear ranges for rutin and AA are 20 nmol/L-10 mol/L and 8 mol/L-1 mmol/L, respectively. The detection limit is 6 nmol/L for rutin and 2 mol/L for AA (S/N=3), which are lower than those of the reported electrochemical sensors.
- Conducting polymer,
- Graphene oxide,
- Nanocomposites,
- Simultaneous determination,
- Electrochemical sensor
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