ZnO/CNTs nanocomposite/ionic liquid carbon paste electrode for determination of noradrenaline in human samples

被引：85
|
作者：
Pahlavan, Ali [1 ]
Gupta, Vinod Kumar [2 ]
Sanati, Afsaneh L. [3 ]
Karimi, Fatemeh [4 ]
Yoosefian, Mehdi [3 ]
Ghadami, Mojtaba [5 ]
机构：
[1] Islamic Azad Univ, Sari Branch, Dept Phys, Sari, Iran
[2] Indian Inst Technol Roorkee, Dept Chem, Roorkee 247667, Uttar Pradesh, India
[3] Grad Univ Adv Technol, Dept Chem, Kerman, Iran
[4] Islamic Azad Univ, Majlesi Branch, Dept Chem, Esfahan, Iran
[5] Res Youth & Sports Org, Mazandaran, Iran
来源：
ELECTROCHIMICA ACTA | 2014年 / 123卷
关键词：
Noradrenaline; Ionic liquid; ZnO/CNTs; Modified electrode; MEMBRANE POTENTIOMETRIC SENSOR; SENSITIVE VOLTAMMETRIC SENSOR; NICOTINAMIDE ADENINE-DINUCLEOTIDE; ELECTROCATALYTIC OXIDATION; FOLIC-ACID; NANOTUBES; NOREPINEPHRINE; DOPAMINE; PHARMACEUTICALS; ACETAMINOPHEN;
D O I：
10.1016/j.electacta.2014.01.006
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In the presence study we describe synthesis and application of new nanocomposite (ZnO/CNTs) room temperature ionic liquid (RTIL) modified carbon paste electrode as a voltammetric sensor for determination of noradrenaline (NE) in pharmaceutical and biological samples. The proposed sensor exhibits an enhanced effectiveness for the electro-oxidation of NE in aqueous solution. The oxidation peak potential for NE at a surface of the ionic liquid (1, 3-dipropylimidazolium bromide) ZnO/CNTs carbon paste electrode (ZnO/CNTs/IL/CPE) appeared at 440 mV. Square wave voltammetry (SWV) was applied as a very sensitive electrochemical method for the determination of NE. The linear response range and detection limit were found to be 5.0 x 10(-8) to 4.5 x 10(-4) M and 2.0 x 10(-8) M, respectively. The proposed sensor was successfully applied for the determination of NE in urine athletes and ampoule samples. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：456 / 462
页数：7
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