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题名: A novel sensor based on electrochemical polymerization of diglycolic acid for determination of acetaminophen
作者: Xu, Fen1;  Ru, Hui-Ying1, 2;  Sun, Li-Xian2;  Zou, Yong-Jin3;  Jiao, Cheng-Li2;  Wang, Tao-Yi1, 2;  Zhang, Jia-Ming1, 2;  Zheng, Qian1, 2;  Zhou, Huai-Ying3
关键词: Acetaminophen ;  Diglycolic acid ;  Poly(diglycolic acid) film ;  Modified electrode ;  Cyclic voltammetry
刊名: BIOSENSORS & BIOELECTRONICS
发表日期: 2012-10-01
DOI: 10.1016/j.bios.2012.04.036
卷: 38, 期:1, 页:27-30
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biophysics ;  Biotechnology & Applied Microbiology ;  Chemistry, Analytical ;  Electrochemistry ;  Nanoscience & Nanotechnology
研究领域[WOS]: Biophysics ;  Biotechnology & Applied Microbiology ;  Chemistry ;  Electrochemistry ;  Science & Technology - Other Topics
英文摘要: Diglycolic acid (DA) polymer was coated on glassy carbon (GC) electrode by cyclic voltammetry (CV) technique for the first time. The electrochemical performances of the modified electrode were investigated by CV and electrochemical impedance (EIS). The obtained electrode showed an excellent electrocatalytic activity for the oxidation of acetaminophen (ACOP). A couple of well-defined reversible electrochemical redox peaks were observed on the ploy(DA)/GC electrode in ACOP solution. Compared with bare GC electrode, the oxidation peak potential of ACOP on ploy(DA)/GC electrode moved from 0.289 V to 0.220 V. Meanwhile, the oxidation peak current was much higher on the modified electrode than that on the bare GC electrode, indicating DA polymer modified electrode possessed excellent performance for the oxidation of ACOP. This kind of capability of the modified electrode can be enlisted for the highly sensitive and selective determination of ACOP. Under the optimized conditions, a wide linear range from 2 x 10(-8) to 5.0 x 10(-4) M with a correlation coefficient 0.9995 was obtained. The detection limit was 6.7 x 10(-8) M (at the ratio of signal to noise, S/N=3:1). The modified electrode also exhibited very good stability and reproducibility for the detection of ACOP. The established method was applied to the determination of ACOP in samples. An average recovery of 100.1% was achieved. These results indicated that this method was reliable for determining ACOP. (c) 2012 Elsevier B.V. All rights reserved.
关键词[WOS]: WALLED CARBON NANOTUBES ;  ASCORBIC-ACID ;  ELECTRODE ;  NANOPARTICLES ;  FILM ;  DOPAMINE
语种: 英语
WOS记录号: WOS:000308455700004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143041
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Liaoning Normal Univ, Coll Chem & Chem Engn, Dalian 116029, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
3.Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Peoples R China

Recommended Citation:
Xu, Fen,Ru, Hui-Ying,Sun, Li-Xian,et al. A novel sensor based on electrochemical polymerization of diglycolic acid for determination of acetaminophen[J]. BIOSENSORS & BIOELECTRONICS,2012,38(1):27-30.
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