A Carbon Paste Electrode Modified by Graphene Oxide/Fe3O4@SiO2/Ionic Liquid Nanocomposite for Voltammetric Determination of Acetaminophen in the Presence of Tyrosine

被引：9
|
作者：
Beitollahi, Hadi [1 ]
Nejad, Fariba Garkani [1 ]
机构：
[1] Grad Univ Adv Technol, Environm Dept, Inst Sci & High Technol & Environm Sci, Kerman, Iran
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2019年 / 55卷 / 12期
关键词：
acetaminophen; tyrosine; magnetic nanocomposite; core-shell graphene oxide; Fe3O4@SiO2; ionic liquids; voltammetry; TEMPERATURE IONIC LIQUIDS; ELECTROCHEMICAL SENSOR; ASCORBIC-ACID; NANOPARTICLES; NANOTUBES; NOREPINEPHRINE; ISOPROTERENOL; NANOMATERIALS; PEROXIDASE; BEHAVIOR;
D O I：
10.1134/S1023193519120024
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Herein, we introduce a novel modification process for carbon paste electrode by magnetic core-shell nanocomposite of graphene oxide/Fe3O4@SiO2 and n-hexyl-3-methylimidazolium hexafluoro phosphate as ionic liquid. Electrochemical features of this modified carbon paste electrode and its performance evaluation in simultaneous detection of acetaminophen and tyrosine via voltammetric oxidation was investigated. Moreover, diagnostic techniques including cyclic voltammetry, square wave voltammetry and chronoamperometry were applied in order to study the electrochemical oxidation behavior of this sensor toward acetaminophen. According to square wave voltammetry results, linear dynamic range between 1.0 x 10(-6)-1.0 x 10(-3) M was observed for acetaminophen. The function of modified electrode in real samples containing acetaminophen and tyrosine was satisfactory.
引用
收藏
页码：1162 / 1170
页数：9
相关论文
共 50 条
12345