Electrochemical sensing of Sudan I using the modified graphite screen-printed electrode

被引：29

作者：

Tajik, Somayeh ^{[1
,2
,3
]}

Beitollahi, Hadi ^{[4
]}

Nejad, Fariba Garkani ^{[4
]}

Safaei, Mohadeseh ^{[4
]}

Jahani, Peyman Mohammadzadeh ^{[5
]}

机构：

[1] Kerman Univ Med Sci, Res Ctr Trop & Infect Dis, Kerman, Iran

[2] Kerman Univ Med Sci, Leishmaniasis Res Ctr, Kerman, Iran

[3] Kerman Univ Med Sci, Neurosci Res Ctr, Kerman, Iran

[4] Grad Univ Adv Technol, Inst Sci & High Technol & Environm Sci, Environm Dept, Kerman, Iran

[5] Bam Univ Med Sci, Sch Med, Bam, Iran

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 2022年 / 102卷 / 07期

关键词：

Sudan I; ZnFe2O4; nanoparticles; food analysis; screen printed electrode; GLASSY-CARBON ELECTRODE; REDUCED GRAPHENE OXIDE; PERFORMANCE LIQUID-CHROMATOGRAPHY; VOLTAMMETRIC DETERMINATION; FOOD SAMPLES; PASTE ELECTRODE; HOT CHILI; SENSITIVE DETERMINATION; TRACE RECOGNITION; SENSOR;

D O I：

10.1080/03067319.2020.1738418

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The present research devised a strongly sensitive user-friendly electrochemical sensor to determine Sudan I with regard to ZnFe2O4 nanoparticles (NPs) modified graphite screen-printed electrode (GSPE), ZnFe2O4/SPE, with various cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. Our sensor exhibited clear catalytic behaviours towards Sudan I oxidation validated by the reduced oxidation peak potentials and enhanced the peak currents of oxidation as compared to the bare SPE. Therefore, Sudan I electron transfer coefficient (alpha) as well as the diffusion coefficient (D) have been derived at the modified electrode. Analyses showed 0.1-500.0 mu M linear response range and 0.03 mu M limit of detection (LOD). While determining Sudan I, other species exhibited no intervention in the new sensor surface at optimum condition. Finally, Sudan I has been successfully determined by this sensor in the real samples with reasonable outputs.

引用

页码：1477 / 1490

页数：14

共 50 条

[1]

Bard A.J., 2001, Electrochemical Methods. Fundamentals and Applications

[2]

Beitollahi H., 2014, J ANAL SCI TECHNOL, V5, P29, DOI DOI 10.1186/S40543-014-0029-Y

[3] Application of graphite screen printed electrode modified with dysprosium tungstate nanoparticles in voltammetric determination of epinephrine in the presence of acetylcholine [J].