Electrochemical Determination of Sunset Yellow Based on an Expanded Graphite Paste Electrode

被引：17

作者：

Zhang, Jing ^{[1
]}

Zhu, Huihui ^{[1
]}

Wang, Meiling ^{[1
]}

Wang, Wenchang ^{[1
]}

Chen, Zhidong ^{[1
]}

机构：

[1] Changzhou Univ, Sch Petrochem Engn, Changzhou 213164, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2013年 / 160卷 / 08期

基金：

美国国家科学基金会;

关键词：

PHOTODIODE-ARRAY DETECTION; LIQUID-CHROMATOGRAPHY; 1ST-DERIVATIVE SPECTROPHOTOMETRY; LEAST-SQUARES; FOOD DYES; TARTRAZINE; DRINKS; COLORANTS;

D O I：

10.1149/2.065308jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel and sensitive electrochemical method was proposed for the determination of Sunset yellow (SY) using an expanded graphite paste electrode (EGPE). The EGPE was prepared by mixing expanded graphite (EG) with solid paraffin. EG was characterized with scanning electron microscopy. Compared with flake graphite paste and carbon paste electrode, the EGPE showed a higher electrocatalytic activity toward the oxidation of SY. The EGPE exhibited wide linear response of 5.0 x 10(-8) - 2.0 x 10(-6) mol/L with a detection limit down to 5.0 nmol/L (S/N = 3) and good accuracy, precision, reproducibility. The proposed method was successfully applied in the determination of SY in jelly and fruit juice. (C) 2013 The Electrochemical Society. All rights reserved.

引用

页码：H459 / H462

页数：4

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