Electrocatalytic oxidation and determination of estradiol using an electrode modified with carbon nanotubes and an ionic liquid

被引：40
作者：
Tao, Han [1 ]
Wei, Wanzhi [2 ]
Zeng, Xiandong [2 ]
Liu, Xiaoying [2 ]
Zhang, Xuejun [1 ]
Zhang, Yiming [1 ]
机构：
[1] Guizhou Univ, Prov Key Lab Fermentat Engn & Biopharmaceut, Coll Chem & Chem Engn, Guiyang 550003, Guizhou, Peoples R China
[2] Hunan Univ, State Key Lab Chemobiosensing & Chemometr, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China
来源：
MICROCHIMICA ACTA | 2009年 / 166卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Estradiol; MWNTs; Electrocatalysis; Ionic liquid; PASTE ELECTRODE; 17-BETA-ESTRADIOL; BIOSENSOR;
D O I：
10.1007/s00604-009-0163-1
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A sensitive method for the determination of estradiol is presented that is based on an electrode modified with multi-walled carbon nanotubes (MWNTs) along with an ionic liquid. The resulting electrode showed more sensitive voltammetric response to estradiol than other electrodes modified with MWNTs. The peak current for estradiol is linearly related to concentration over two decades, and the limit of detection is 5 nM. The method was applied to the determination of estradiol in rabbit blood serum and in environmental waters. The recoveries were 95.3-104.0% and 97.0-104.7%, respectively.
引用
收藏
页码：53 / 59
页数：7
相关论文
共 38 条
  • [1] Bard A. J., 2001, ELECTROCHEMICAL METH, P211
  • [2] Analysis of sudan I, sudan II, sudan III, and sudan IV in food by HPLC with electrochemical detection: Comparison of glassy carbon electrode with carbon nanotube-ionic liquid gel modified electrode
    Chailapakul, Orawon
    Wonsawat, Wanida
    Siangproh, Weena
    Grudpan, Kate
    Zhao, Yifang
    Zhu, Zhiwei
    [J]. FOOD CHEMISTRY, 2008, 109 (04) : 876 - 882
  • [3] Sensitive voltammetric response of methylparathion on single-walled carbon nanotube paste coated electrodes using ionic liquid as binder
    Fan, Shuangshuang
    Xiao, Fei
    Liu, Liqin
    Zhao, Faqiong
    Zeng, Baizhao
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2008, 132 (01): : 34 - 39
  • [4] Molecular ordering of organic molten salts triggered by single-walled carbon nanotubes
    Fukushima, T
    Kosaka, A
    Ishimura, Y
    Yamamoto, T
    Takigawa, T
    Ishii, N
    Aida, T
    [J]. SCIENCE, 2003, 300 (5628) : 2072 - 2074
  • [5] Determination of estradiol and its degradation products by liquid chromatography
    Havlikova, Lucie
    Novakova, Lucie
    Matysova, Ludmila
    Sicha, Jan
    Solich, Petr
    [J]. JOURNAL OF CHROMATOGRAPHY A, 2006, 1119 (1-2) : 216 - 223
  • [6] Electrochemical properties of estradiol at glassy carbon electrode modified with nano-Al2O3 film
    He, Q
    Yuan, SA
    Chen, C
    Hu, SS
    [J]. MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2003, 23 (05): : 621 - 625
  • [7] Electrochemical biosensing platforms using platinum nanoparticles and carbon nanotubes
    Hrapovic, S
    Liu, YL
    Male, KB
    Luong, JHT
    [J]. ANALYTICAL CHEMISTRY, 2004, 76 (04) : 1083 - 1088
  • [8] Effects of larval exposure to estradiol on spermatogenesis and in vitro gonadal steroid secretion in African clawed frogs, Xenopus laevis
    Hu, Fang
    Smith, Ernest E.
    Carr, James A.
    [J]. GENERAL AND COMPARATIVE ENDOCRINOLOGY, 2008, 155 (01) : 190 - 200
  • [9] HELICAL MICROTUBULES OF GRAPHITIC CARBON
    IIJIMA, S
    [J]. NATURE, 1991, 354 (6348) : 56 - 58
  • [10] Molecularly imprinted solid-phase extraction for the selective determination of 17β-estradiol in fishery samples with high performance liquid chromatography
    Jiang, Tianhe
    Zhao, Lixia
    Chu, Baolin
    Feng, Qinzhong
    Yan, Wei
    Lin, Jin-Ming
    [J]. TALANTA, 2009, 78 (02) : 442 - 447
1234