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

被引：0
作者：
Han Tao
Wanzhi Wei
Xiandong Zeng
Xiaoying Liu
Xuejun Zhang
Yiming Zhang
机构：
[1] Guizhou University,Province Key Laboratory of Fermentation Engineering and Biopharmaceutical, College of Chemistry and Chemical Engineering
[2] Hunan University,State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering
来源：
Microchimica Acta | 2009年 / 166卷
关键词：
Estradiol; MWNTs; Electrocatalysis; Ionic liquid;
D O I：
暂无
中图分类号：
学科分类号：
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：6
相关论文
共 165 条
[1]  
Iijima S(1991)Helical microtubules of graphitic carbon Nature 354 356-undefined
[2]  
Zeng JX(2008)A simple method to fabricate a prussian blue nanoparticles/carbon nanotubes/poly(1, 2-diaminobenzene) based glucose biosensor Microchim Acta 160 261-undefined
[3]  
Wei WZ(2005)Simple cast-deposited multi-walled carbon nanotube/nafion thin film electrodes for electrochemical stripping analysis Microchim Acta 150 269-undefined
[4]  
Liu XY(2006)Glucose biosensor based on the use of a carbon nanotube paste electrode modified with metallic particles Microchim Acta 152 277-undefined
[5]  
Wang Y(2004)Electrochemical biosensing platforms using platinum nanoparticles and carbon nanotubes Anal Chem 76 1083-undefined
[6]  
Luo GM(2007)Multi-walled carbon nanotube paste electrode for selective voltammetric detection of isoniazid Microchim Acta 157 149-undefined
[7]  
Tsai YC(2008)A novel carbon nanotube-modified biosensor containing a dsDNA-Ni(II) complex membrane and its use for electro-catalytic oxidation of methanol in alkaline medium Microchim Acta 162 245-undefined
[8]  
Chen JM(2007)Electrochemical determination of malachite green using a multi-wall carbon nanotube modified glassy carbon electrode Microchim Acta 160 291-undefined
[9]  
Marken F(2003)Molecular ordering of organic molten salts triggered by single-walled carbon nanotubes Science 300 2072-undefined
[10]  
Luque GL(2005)Green chemical functionalization of single-walled carbon nanotubes in ionic liquids J Am Chem Soc 127 14867-undefined
12345678910