Rapid voltammetric detection of kojic acid at a multi-walled carbon nanotubes screen-printed electrode

被引：20
|
作者：
Buleandra, Mihaela [1 ]
Rabinca, Andreea Alexandra [1 ,2 ]
Tache, Florentin [1 ]
Moldovan, Zenovia [1 ]
Stamatin, Joan [2 ]
Mihailciuc, Constantin [3 ]
Ciucu, Anton Alexandru [1 ]
机构：
[1] Univ Bucharest, Dept Analyt Chem, Fac Chem, 90-92 Panduri Ave, Bucharest 050663, Romania
[2] Univ Bucharest, SAE Res Ctr 3nano, Fac Phys, MG38 Magurele, Bucharest, Romania
[3] Univ Bucharest, Dept Phys Chem, Fac Chem, Bucharest, Romania
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2017年 / 241卷
关键词：
Kojic acid; Multi-walled carbon nanotubes; Screen-printed carbon electrode; Amperometric determination; Food samples; PERFORMANCE LIQUID-CHROMATOGRAPHY; COSMETIC BLEACHING PRODUCTS; ASCORBYL GLUCOSIDE; HYDROQUINONE; MYCOTOXIN; OXIDATION; ARBUTIN; HPLC;
D O I：
10.1016/j.snb.2016.10.103
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A differential pulse voltammetric method for the determination of kojic acid (KA) was developed. The electrochemical behavior of KA at a multi-walled carbon nanotubes modified screen-printed electrode (MWCNTs-SPCE) was explored. A single irreversible oxidation peak was observed at a potential of 0.791 V and 0.989 V on the MWCNTs-SPCE and screen-printed carbon electrode (SPCE), respectively. Under the optimized conditions, the anodic peak current of KA recorded by differential pulse voltammetry varies linearly with KA concentration in the range 0.02-5 mM with a detection limit of 0.016 mM. The MWCNTs-SPCE was used for quantitative analysis of KA in food samples and the results indicate the feasibility of the amperometric method for KA analysis in routine detection. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：406 / 412
页数：7
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