Determination of trace xanthine by anodic stripping voltammetry with carbon nanotube modified glassy carbon electrode

被引：33
|
作者：
Zhao, G
Zang, SQ
Liu, KZ [1 ]
Lin, S
Liang, J
Guo, XY
Zhang, ZJ
机构：
[1] Henan Univ, Dept Chem, Kaifeng 475001, Peoples R China
[2] Tsinghua Univ, Dept Mech, Beijing 100084, Peoples R China
[3] Henan Univ, Key Lab Lubricat & Funct Mat, Kaifeng 475001, Peoples R China
来源：
ANALYTICAL LETTERS | 2002年 / 35卷 / 14期
关键词：
anodic stripping voltammetry; carbon nanotubes; chemically modified electrode; xanthine determination;
D O I：
10.1081/AL-120016098
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The electrochemistry of xanthine (Xa) was studied by CV at a glassy carbon electrode modified with carbon nanotubes. A well defined, sensitive oxidation wave of xanthine and a small reduction wave were obtained. Based on the oxidation peak, a method for determination of xanthine with semi-derivative anodic stripping voltammetry at a glassy carbon electrode modified with carbon nanotubes was investigated. The stripping peak current is proportional to the concentration of Xa over the range 2.0 x 10(-7) -2.0 x 10(-5) M with 1-min accumulation. The detection limit is 4.0 x 10(-9) mol/L with 3-min accumulation. The method has been successfully applied to the determination of xanthine in human serum.
引用
收藏
页码：2233 / 2244
页数：12
相关论文
共 50 条
  • [31] Electrochemical behavior of lead(II) at poly(phenol red) modified glassy carbon electrode, and its trace determination by differential pulse anodic stripping voltammetry
    Yang, Gongjun
    Qu, Xilong
    Shen, Ming
    Wang, Chengyin
    Qu, Qishu
    Hu, Xiaoya
    MICROCHIMICA ACTA, 2008, 160 (1-2) : 275 - 281
  • [32] Trace determination of vanadium(V) using anodic adsorptive voltammetry at a glassy carbon electrode modified with multi-walled carbon nanotubes
    Deng, Pei-Hong
    Fei, Jun-Jie
    Zhang, Jun
    Li, Ju-Nan
    MICROCHIMICA ACTA, 2009, 165 (1-2) : 211 - 216
  • [33] Electrochemical behavior of lead(II) at poly(phenol red) modified glassy carbon electrode, and its trace determination by differential pulse anodic stripping voltammetry
    Gongjun Yang
    Xilong Qu
    Ming Shen
    Chengyin Wang
    Qishu Qu
    Xiaoya Hu
    Microchimica Acta, 2008, 160 : 275 - 281
  • [34] Determination of trace levels of diosmin in a pharmaceutical preparation by adsorptive stripping voltammetry at a glassy carbon electrode
    El-Shahawi, M. S.
    Bashammakh, A. S.
    El-Mogy, T.
    ANALYTICAL SCIENCES, 2006, 22 (10) : 1351 - 1354
  • [35] Trace determination of vanadium(V) using anodic adsorptive voltammetry at a glassy carbon electrode modified with multi-walled carbon nanotubes
    Pei-Hong Deng
    Jun-Jie Fei
    Jun Zhang
    Ju-Nan Li
    Microchimica Acta, 2009, 165 : 211 - 216
  • [36] Determination of Trace Levels of Diosmin in a Pharmaceutical Preparation by Adsorptive Stripping Voltammetry at a Glassy Carbon Electrode
    M. S. El-Shahawi
    A. S. Bashammakh
    T. El-Mogy
    Analytical Sciences, 2006, 22 : 1351 - 1354
  • [37] Determination of trace amount of bismuth(III) by adsorptive anodic stripping voltammetry at carbon paste electrode
    Guo, HS
    Li, YH
    Xiao, PF
    He, NY
    ANALYTICA CHIMICA ACTA, 2005, 534 (01) : 143 - 147
  • [38] Trace Determination of Lead in Environmental and Biological Samples by Anodic Stripping Voltammetry on Carbon Paste Electrode
    Rievaj, Miroslav
    Tomcik, Peter
    Cernanska, Monika
    Janosikova, Zuzana
    Bustin, Dusan
    CHEMIA ANALITYCZNA, 2008, 53 (05): : 717 - 723
  • [39] Trace determination of cadmium in water using anodic stripping voltammetry at a carbon paste electrode modified with coconut shell powder
    Rajawat D.S.
    Kumar N.
    Satsangee S.P.
    Journal of Analytical Science and Technology, 5 (1)
  • [40] Determination of Trace Tl(I) by Differential Pulse Anodic Stripping Voltammetry Using a Novel Modified Carbon Paste Electrode
    Ghanei-Motlagh, Masoud
    Baghayeri, Mehdi
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2020, 167 (06)
12345