Highly Sensitive Voltammetric Sensor for Determination of Ascorbic Acid Using Graphite Screen Printed Electrode Modified with ZnO/Al2O3 Nanocomposite

被引：54
|
作者：
Ganjali, Mohammad Reza [1 ,2 ]
Nejad, Fariba Garkani [3 ]
Beitollahi, Hadi [4 ]
Jahani, Shohreh [4 ]
Rezapour, Morteza [5 ]
Larijani, Bagher [6 ]
机构：
[1] Univ Tehran, Ctr Excellence Electrochem, Tehran, Iran
[2] Univ Tehran Med Sci, Endocrinol & Metab Mol Cellular Sci Inst, Biosensor Res Ctr, Tehran, Iran
[3] Grad Univ Adv Technol, Dept Chem, Kerman, Iran
[4] Grad Univ Adv Technol, Inst Sci & High Technol & Environm Sci, Environm Dept, Kerman, Iran
[5] RIPI, IP Dept, POB 14665-137, Tehran, Iran
[6] Univ Tehran Med Sci, Endocrinol & Metab Clin Sci Inst, Diabet Res Ctr, Tehran, Iran
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2017年 / 12卷 / 04期
关键词：
Ascorbic acid; ZnO/Al2O3; nanocomposite; Graphite screen printed electrode; voltammetry; CARBON-PASTE ELECTRODE; ELECTROCHEMICAL SENSOR; URIC-ACID; 2,7-BIS(FERROCENYL ETHYL)FLUOREN-9-ONE; ELECTROCATALYTIC DETERMINATION; PHARMACEUTICAL FORMULATIONS; SELECTIVE DETERMINATION; GRAPHENE OXIDE; FOLIC-ACID; NANOPARTICLES;
D O I：
10.20964/2017.04.07
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A sensitive and selective voltammetric sensor based on graphite screen printed electrode modified by ZnO/Al2O3 nanocomposite for the detection of ascorbic acid has been successfully developed. The electrochemical behavior of prepared electrode for the determination of ascorbic acid was systematically investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Under optimum conditions, the modified electrode exhibits linear responses to ascorbic acid in the ranges 1.0-100 mu M, with detection limits (S/N = 3) calculated to be 0.6 mu M. Finally, the developed sensor was successfully applied to the detection of ascorbic in real samples.
引用
收藏
页码：3231 / 3240
页数：10
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