Determination of ascorbic acid, dopamine, and uric acid by a novel electrochemical sensor based on pristine graphene

被引：248
作者：
Qi, Shaopeng [1 ]
Zhao, Bo [1 ]
Tang, Heqing [2 ]
Jiang, Xiaoqing [1 ]
机构：
[1] Nanjing Normal Univ, Coll Chem & Mat Sci, Lab Electrochem, Jiangsu Key Lab New Power Batteries, Nanjing 210097, Jiangsu, Peoples R China
[2] South Cent Univ Nationalities, Coll Chem & Mat Sci, Wuhan 430074, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2015年 / 161卷
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
pristine graphene; electrochemical sensor; ascorbic acid; dopamine; uric acid; LIQUID-PHASE EXFOLIATION; CARBON-PASTE ELECTRODE; SULFONATED GRAPHENE; GRAPHITE OXIDE; PH; 7; FILMS; ANTIOXIDANT; NANOTUBES;
D O I：
10.1016/j.electacta.2015.02.116
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this article, a novel electrochemical sensor based on pristine graphene (PG) is successfully constructed to detect ascorbic acid (AA), dopamine (DA), and uric acid (UA). The PG is obtained by liquid-phase exfoliation of graphite and characterized by transmission electron microscopy and X-ray photoelectron spectroscopy. The sensor based on PG prepared by this method to realize simultaneous determination of AA, DA, and UA is firstly reported. The linear detection ranges for AA, DA, and UA are 9.00-2314 mu M, 5.00-710 mu M, and 6.00-1330 mu M, respectively, with detection limits of 6.45, 2.00, and 4.82 mu M. This PG based sensor exhibits excellent performance for detection of AA, DA, and UA, which is much better than those electrochemical sensors based on chemical converted graphene. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：395 / 402
页数：8
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