Electrochemical sensor based on graphene and mesoporous TiO2 for the simultaneous determination of trace colourants in food

Gan, Tian; Sun, Junyong; Meng, W. J.; Li, Song; Zhang, Yuxia

doi:10.1016/j.foodchem.2013.06.084

Cited by 148 publications

(62 citation statements)

References 31 publications

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“…Comparison of the response characteristics for determination of SY and Tz at various modified electrodes was presented in Table 1. In comparison with other modified electrodes reported previously [2,10,11,[30][31][32][33], the proposed modified electrode possesses unique properties. Firstly, it possessses all the advantages of CCE and also benefitted from the advantages of ionic liquid and graphene nanoplatelet-like structures formed on the CCE surface because of ionic liquid deposition.…”

Section: Differential Pulse Voltammetry Of Sy and Tzmentioning

confidence: 68%

Formation of graphene nanoplatelet-like structures on carbon–ceramic electrode surface: application for simultaneous determination of sunset yellow and tartrazine in some food samples

Majidi

Pournaghi-Azar

Baj

et al. 2014

Ionics

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Carbon-ceramic electrode modified with 1-allyl-3-methyl imidazolium tetraflouroborate ionic liquid was constructed. Scanning electron microscopy, X-ray diffraction analysis), energy dispersive X-ray analysis proved that the deposition of ionic liquid on the surface of carbon-ceramic electrode caused formation of graphene nanoplatelet-like structures on its surface. This electrode was used for simultaneous electrochemical determination of sunset yellow (SY) and tartrazine (Tz). Operational parameters such as pH of solution and ionic liquid volume which affected the analytical performance of modified electrode were optimized. The present electrode exhibited linear response to SY and Tz in concentration range of 1×10 −7 -1.5×10 −5 M and 1×10 −7 -2×10 −5 M with a detection limit of 7.3×10 − 8 M and 8.1×10 −8 M, respectively. The high repeatability, reproducibility, long-term life time, and low response time (<3 s) are advantages of modified electrode. The modified electrode was successfully applied for simultaneous determination of SY and Tz in different food samples, and the results were in good agreement with those obtained from HPLC method.

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Section: Differential Pulse Voltammetry Of Sy and Tzmentioning

confidence: 68%

Formation of graphene nanoplatelet-like structures on carbon–ceramic electrode surface: application for simultaneous determination of sunset yellow and tartrazine in some food samples

Majidi

Pournaghi-Azar

Baj

et al. 2014

Ionics

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“…These results indicated that both sunset yellow and tartrazine involved a one-electron transfer reaction on the PDDA-Gr-Pd/GCE. Combined with the previous discussion about the pH effect, it is deduced that the reaction mechanism of sunset yellow and tartrazine is one-electron and one-proton transfer process, which is illustrated in Scheme 1 (Gan et al 2013).…”

Section: Effect Of Scan Rate and Reaction Mechanism Of Sunset Yellow mentioning

confidence: 63%

A Novel Electrochemical Sensor Based on Poly (Diallyldimethylammonium Chloride)-Dispersed Graphene Supported Palladium Nanoparticles for Simultaneous Determination of Sunset Yellow and Tartrazine in Soft Drinks

Zheng

Shi

et al. 2016

Food Anal. Methods

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A new and sensitive electrochemical sensor for simultaneous determination of sunset yellow and tartrazine was constructed by poly (diallyldimethylammonium chloride) (PDDA)-dispersed graphene (Gr) and palladium nanoparticle (Pd NP) composite. The PDDA-Gr-Pd composite displayed good selectivity and high sensitivity to the targets, which were ascribed to the synergistic effect of the large surface area and good electron transfer efficiency of both Gr and Pd NPs. The electrochemical properties of sunset yellow and tartrazine on the modified electrode were investigated by cyclic voltammetry and differential pulse voltammetry. Under the optimum experimental conditions, the peak currents were linear with the concentrations of sunset yellow and tartrazine in the ranges of 0.01-10.0 and 0.05-8.0 μmol L −1 , respectively. The limit of detection (LOD) was 2.0 and 5.0 nmol L −1 for sunset yellow and tartrazine, respectively. The developed simple and sensitive method was successfully applied for simultaneous determination of sunset yellow and tartrazine in soft drinks with satisfactory results.

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“…For example, pulse laser deposition was applied to deposit V 2 O 5 film on the graphene paper surface to yield flexible energy storage devices [81]. NiO [82], TiO 2 [83][84][85], indium-gallium-zinc oxide [86] and PtNPs/MnO 2 nanowires [61] were all successfully deposited onto graphene paper surfaces for specific functionalization. In addition, non-metallic nanostructures such as those carbon-containing building blocks (e.g.…”

Section: Metallic Compound Nanostructuresmentioning

confidence: 99%

Graphene-Paper Based Electrochemical Sensors

Zhang¹,

Halder²,

Cao³

et al. 2017

Electrochemical Sensors Technology

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Graphene paper as a new form of graphene-supported nanomaterials has received worldwide attention since its first report in 2007. Due to their high flexibility, lightweight and good electrical conductivity, graphene papers have demonstrated the promising potential for crucial applications in electrochemical sensors and energy technologies among others. In this chapter, we present some examples to overview recent advances in the research and development of two-dimensional (2D) graphene papers as new materials for electrochemical sensors. The chapter covers the design, fabrication, functionalization and application evaluations of graphene papers. We first summarize the mainstream methods for fabrication of graphene papers/membranes, with the focus on chemical vapour deposition techniques and solution-processing assembly approaches. A large portion of this chapter is then devoted to the highlights of specific functionalization of graphene papers with polymer and nanoscale functional building blocks for electrochemical-sensing purposes. In terms of electrochemical-sensing applications, the emphasis is on enzyme-graphene and nanoparticle-graphene paper-based systems for the detection of glucose. We finally conclude this chapter with brief remarks and outlook.

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Electrochemical sensor based on graphene and mesoporous TiO2 for the simultaneous determination of trace colourants in food

Cited by 148 publications

References 31 publications

Formation of graphene nanoplatelet-like structures on carbon–ceramic electrode surface: application for simultaneous determination of sunset yellow and tartrazine in some food samples

Formation of graphene nanoplatelet-like structures on carbon–ceramic electrode surface: application for simultaneous determination of sunset yellow and tartrazine in some food samples

A Novel Electrochemical Sensor Based on Poly (Diallyldimethylammonium Chloride)-Dispersed Graphene Supported Palladium Nanoparticles for Simultaneous Determination of Sunset Yellow and Tartrazine in Soft Drinks

Graphene-Paper Based Electrochemical Sensors

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