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Detection of dopamine using self-assembled diazoresin/single-walled carbon nanotube modified electrodes

Bing Yu ,  Hua Yuan ,  Yi-Ying Yang ,  Hai-Lin Cong ,  Tian-Zi Hao ,  Xiao-Dan Xu ,  Xiu-Lan Zhang ,  Shu-Jing Yang ,  Li-Xin Zhang

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Citation:  Bing Yu, Hua Yuan, Yi-Ying Yang, Hai-Lin Cong, Tian-Zi Hao, Xiao-Dan Xu, Xiu-Lan Zhang, Shu-Jing Yang, Li-Xin Zhang. Detection of dopamine using self-assembled diazoresin/single-walled carbon nanotube modified electrodes[J]. Chinese Chemical Letters, 2014, 25(4): 523-528. doi: 10.1016/j.cclet.2014.01.029 shu

Detection of dopamine using self-assembled diazoresin/single-walled carbon nanotube modified electrodes

    • 通讯作者: Bing Yu,
    Hai-Lin Cong,
  • 基金项目:

    This work is financially supported by the National Key Basic Research Development Program of China (973 Special Preliminary Study Plan, No. 2012CB722705) (973 Special Preliminary Study Plan, No. 2012CB722705)

    the Fok Ying Tong Education Foundation (No. 131045) (No. 131045)

    the Scientific Research Foundation for the Returned Overseas Chinese Scholars of State Education Ministry (No. 20111568) (No. 20111568)

    Technology Program of Qingdao (No. 1314159jch). (No. 1314159jch)

摘要: Ultrathin films of diazoresin (DR)/single-walled carbon nanotube (SWNT) were fabricated on thioglycollic acid (TGA) decorated gold (Au) electrodes by the self-assembly method combined with the photocrosslinking technique. The electrochemical behavior of dopamine (DA) at the DR/SWNT modified electrodes was studied using the cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. Under the optimal conditions, a linear CV response to DA concentration from 1 μmol/L to 40 μmol/L was observed, and the detection limit of DA was 2.1×10-3 μmol/L via the DPV method in the presence of 10 μmol/L of uric acid (UA) or 2.5×10-3 μmol/L via the DPV method in the presence of 10 μmol/L of ascorbic acid (AA). Moreover, the modified electrodes exhibited good reproducibility and sensitivity, demonstrating its feasibility for analytical purposes.

English

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  • 发布日期:  2014-01-24
  • 收稿日期:  2013-10-24
  • 网络出版日期:  2014-01-02
通讯作者: 陈斌, bchen63@163.com
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