An enhanced electrochemical platform based on graphene oxide and multi-walled carbon nanotubes nanocomposite for sensitive determination of Sunset Yellow and Tartrazine

Qiu, Xinlan; Lu, Limin; Leng, Jing; Yu, Yongfang; Wang, Wenmin; Jiang, Min; Bai, Ling

doi:10.1016/j.foodchem.2015.06.045

Cited by 209 publications

(66 citation statements)

References 33 publications

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“…Siddiquee et al . fabricated a CHIT/GO/MWCNTs/AuNPs/GCE for the sensitive electrochemical detection of SY . Wang et al .…”

Section: Introductionmentioning

confidence: 94%

“…Furthermore, Au nanoparticles show an assortment of great characteristics, such as strong adsorption ability, excellent stability, superior electronic transfer capability, and high surface reactivity ,. Many electrochemical sensors, including graphene oxide and Au nanoparticles, were developed for the electrochemical detection of SY, such as GO/MWCNTs‐modified and Au/RGO‐modified GCEs . Wang et al .…”

Section: Introductionmentioning

confidence: 99%

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Highly Sensitive and Selective Electrochemical Determination of Sunset Yellow in Food Products Based on AuNPs/PANI‐co‐PoAN‐co‐PoT/GO/Au Electrode

2018

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A terpolymer poly(aniline‐co‐o‐anisidine‐co‐o‐toluidine)/graphene oxide nanocomposite with a common abbreviation [PANI‐co‐PoAN‐co‐PoT/GO1‐5] was synthesized by the well‐known in situ oxidative polymerization process with ultrasonic assistance. The morphological characteristics were investigated by field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). Moreover, the complete performance was studied by Fourier transform infrared spectra (FTIR), X‐ray diffraction (XRD), Thermogravimetric analysis (TGA), and electrical conductivity measurements. All nanocomposites displayed a maximum composite degradation temperature (CDTmax) in the range of 295.6‐322.8 °C, which is higher than that shown for the pure terpolymer (295.4 °C). The conductivities of the pure PANI‐co‐PoAN‐co‐PoT and PANI‐co‐PoAN‐co‐PoT/GO1‐5 nanocomposites display conductive behavior. An electrochemical sensor comprising the [PANI‐co‐PoAN‐co‐PoT/GO] nanocomposite and Au nanoparticles was successfully coated onto a gold electrode [AuNPs/PANI‐co‐PoAN‐co‐PoT/GO/Au] through an electrochemical process and was utilized to detect sunset yellow (SY). The electrochemical behavior of the modified electrochemical sensor towards the oxidation of SY was examined by cyclic voltammetry (CV) and square wave voltammetry (SWV). SWV resulted in a linear calibration curve for SY on AuNPs/PANI‐co‐PoAN‐co‐PoT/GO/Au over the range of (5 μM‐500 μM), and the limit of detection was estimated to be 0.0142 μM. These results suggest that the obtained AuNPs/PANI‐co‐PoAN‐co‐PoT/GO/Au was able to detect SY with excellent stability, good selectivity, low detection limit and high sensitivity.

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“…Siddiquee et al . fabricated a CHIT/GO/MWCNTs/AuNPs/GCE for the sensitive electrochemical detection of SY . Wang et al .…”

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Highly Sensitive and Selective Electrochemical Determination of Sunset Yellow in Food Products Based on AuNPs/PANI‐co‐PoAN‐co‐PoT/GO/Au Electrode

2018

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“…28 The formed 3D nanostructures not only inherit the virtues of CNTs and graphene, but also provide extraordinary physicochemical, mechanical and electrical properties. [28][29][30][31][32][33] For instance, the composite of multi-walled carbon nanotubes (MWCNTs) and graphene oxide (GO) has been used to construct sensing interface for simultaneous measurement of sunset tartrazine and Yellow by Lu's group, it is found that the electrodes show an enhanced electrochemical response due to the synergistic catalysis of GO and CNTs. 32 Wang et al have fabricated an effective electrochemical biosensor for carbaryl determination by covalently immobilizing acetylcholinesterase on MWCNTs/GO nanoribbons.…”

Section: Introductionmentioning

confidence: 99%

Acetylcholinesterase biosensor based on electrochemically inducing 3D graphene oxide network/multi-walled carbon nanotube composites for detection of pesticides

Zhao

Shi

et al. 2017

RSC Adv.

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“…3 Graphene oxide (GO) is a flat single layer of SP 2 -and SP 3 -hybridized carbon atoms arranged in a hexagonal lattice [7]. [9]. Considering its low manufacturing costs, large specific surface area, long-term stability and the amphiphilic nature, GO is expected to be an attractive material for a wide variety of applications.…”

Section: Introductionmentioning

confidence: 99%

Modified surface-active ionic liquid-coated magnetic graphene oxide as a new magnetic solid phase extraction sorbent for preconcentration of trace nickel

2016

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A new selective and high-capacity magnetic solid phase extraction sorbent was developed for preconcentration of trace amounts of nickel ions prior to their determination by flame atomic absorption spectrometry (FAAS). The sorbent was prepared by immobilization of dimethylglyoxime ligand (DMG) onto magnetic graphene oxide nanoparticles (MGO) coated with surface-active ionic liquid-based surfactant, 1-hexadecyl-3-methylimidazolium chloride ([C 16 MIM][Cl]). The prepared adsorbent (DMG-C 16 MIM/MGO) was characterized by FESEM, TEM, BET, XRD, VSM and FT-IR spectroscopy. The fabricated adsorbent combines the advantages of superior adsorption capability of modified graphene oxide and magnetic separability of magnetic nanoparticles to provide high adsorption capacity, and easy isolation from sample solutions. Several important parameters influencing the extraction efficiency, such as pH, amount of adsorbent, extraction time, elution conditions, sample volume, interfering ions and adsorption capacity were studied and optimized. Applying all optimum conditions in the process, high preconcentration factor of 100, linear range of 0.56-200 µg L -1 , detection limit of 0.16 µg L -1 , and precision (RSD%, n=6) of 1.21%, were obtained for nickel. Following a 2 modification with 1-hexadecyl-3-methylimidazolium chloride and DMG, modified adsorbent selectivity toward nickel ions was raised more than nine-fold compared to the unmodified magnetic graphene oxide. Adsorption capacity within 15 min interaction time based on the Langmuir model was 129.87 and 26.59 mg g -1 for modified and unmodified adsorbents, respectively. The recoveries in case of real samples varied within the range of 96.8-99.2%confirming good performance of the method in various real samples.

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An enhanced electrochemical platform based on graphene oxide and multi-walled carbon nanotubes nanocomposite for sensitive determination of Sunset Yellow and Tartrazine

Cited by 209 publications

References 33 publications

Highly Sensitive and Selective Electrochemical Determination of Sunset Yellow in Food Products Based on AuNPs/PANI‐co‐PoAN‐co‐PoT/GO/Au Electrode

Highly Sensitive and Selective Electrochemical Determination of Sunset Yellow in Food Products Based on AuNPs/PANI‐co‐PoAN‐co‐PoT/GO/Au Electrode

Acetylcholinesterase biosensor based on electrochemically inducing 3D graphene oxide network/multi-walled carbon nanotube composites for detection of pesticides

Modified surface-active ionic liquid-coated magnetic graphene oxide as a new magnetic solid phase extraction sorbent for preconcentration of trace nickel

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