Graphene Decorated with Nickel Nanoparticles as a Sensitive Substrate for Simultaneous Determination of Sunset Yellow and Tartrazine in Food Samples

被引：47

作者：

Gan, Tian ^{[1
]}

Sun, Junyong ^{[1
]}

Wu, Qiong ^{[1
]}

Jing, Qiangshan ^{[1
]}

Yu, Sheng ^{[1
]}

机构：

[1] Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Peoples R China

来源：

ELECTROANALYSIS | 2013年 / 25卷 / 06期

关键词：

Graphene; Nickel; Sunset yellow; Tartrazine; Simultaneous detection; GLASSY-CARBON ELECTRODE; CHEMICAL OXYGEN-DEMAND; VOLTAMMETRIC DETERMINATION; ELECTROCHEMICAL SENSOR; OXIDE; NANOCOMPOSITE; PERFORMANCE; COMPOSITE; HYBRID;

D O I：

10.1002/elan.201300008

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, ultrathin graphene (GN) nanosheets were uniformly decorated with nickel (Ni) nanoparticles, as confirmed by scanning electron microscopy and transmission electron microscopy. This GNNi hybrid exhibited excellent accumulation and catalytic capacity for the simultaneous detection of sunset yellow and tartrazine, two colorants commonly found mixed in foodstuffs. The electrochemical reaction mechanism of sunset yellow and tartrazine were studied in detail on the GNNi nanocomposite modified glassy carbon electrode. In square wave voltammetry measurements, the oxidation peak potentials of sunset yellow and tartrazine were separated by about 250mV. This novel proposed voltammetric method has good selectivity which was successfully applied for the simultaneous determination of sunset yellow and tartrazine in some food sample extracts.

引用

页码：1505 / 1512

页数：8

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