Graphene quantum dots/ionic liquid-Modified Carbon Paste Electrode-Based Sensor for Simultaneous voltammetric determination of norepinephrine and acetylcholine

被引：23
作者：
Jahani, Peyman Mohammadzadeh [1 ]
Jafari, Maedeh [2 ]
Gupta, Vinod Kumar [3 ]
Agarwal, Shilpi [3 ]
机构：
[1] Bam Univ Med Sci, Sch Med, Bam, Iran
[2] Kerman Univ Med Sci, Sch Med, Dept Pediat, Kerman, Iran
[3] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, Jeddah, Saudi Arabia
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2020年 / 15卷 / 01期
关键词：
Voltammetric sensor; Norepinephrine; Acetylcholine; Graphene quantum dots; Ionic liquid; Carbon paste electrode; PENCIL-GRAPHITE ELECTRODE; ELECTROCHEMICAL SENSOR; URIC-ACID; ASCORBIC-ACID; SIMULTANEOUS ELECTROANALYSIS; FOLIC-ACID; NANOPARTICLES; DOTS; DOPAMINE; HYDROCHLOROTHIAZIDE;
D O I：
10.20964/2020.01.45
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this work, a highly effective voltammetric sensor fabricated for simultaneous analysis of norepinephrine and acetylcholine. The sensor was fabricated by the modification of carbon paste electrode with graphene quantum dots/ionic liquid (GQDs/IL/CPE). The electrochemical behavior of epinephrine on the modified electrode was studied using cyclic voltammetry (CV), differential pulse voltammetry (DPV) and chronoamperometry (CHA). The results indicate that the electrochemical responses are improved significantly with the use of the modified electrode. The calibration curve obtained by DPV, under the optimized conditions, showed linear range of 0.2-400.0 mu M for norepinephrine (limit of detection 0.06 mu M).The sensor was successfully used to detect the analytes in real samples.
引用
收藏
页码：947 / 958
页数：12
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