Simultaneous determination of tartrazine, sunset yellow and allura red in foods using a new cobalt-decorated carbon paste electrode

Penagos‐Llanos, Johisner; García‐Beltrán, Olimpo; Calderón, Jorge A.; Hurtado-Murillo, John J.; Nagles, Édgar; Hurtado, John

doi:10.1016/j.jelechem.2019.113517

Cited by 34 publications

(36 citation statements)

References 40 publications

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“…The anodic peak potentials (Epa) of bare GCE, TiO2/GCE, ErGO/GCE, and TiO2/ErGO/GCE are 0.648, 0.642, 0.624, and 0.620 V, respectively. Interestingly, the anodic peak potential at TiO2/ErGO/GCE is lower compared with previous reports [28,29,32,57], which can effectively avoid the co-oxidation of other interferences that may coexist in food with Allura Red. It probably because TiO2/ErGO nanohybrids can effectively accelerate the electron transfer between and analyte, thus minimizing the activated polarization potential.…”

Section: Electrochemical Response Of Allura Red On Different Modifiedcontrasting

confidence: 58%

“…To address the above-mentioned issues, much effort has been made to develop novel modified electrodes that are capable of efficiently detecting Allura Red based on the oxidation signals. Novel electrochemical sensors based on multiwalled carbon nanotube (MWCNT) [28,29], ionic liquids [30], cobalt oxide [31], and cobalt complex [32] modified electrodes have shown great potentials on the detection of Allura Red, due to their excellent accumulation efficiency and large specific surface area. For example, MWCNT/GCE showed a wide linear response range of 496-4468 µg/L, and it was applied to the analysis of commercial isotonic sports drinks with satisfactory results [28].…”

Section: Introductionmentioning

confidence: 99%

“…For example, MWCNT/GCE showed a wide linear response range of 496-4468 µg/L, and it was applied to the analysis of commercial isotonic sports drinks with satisfactory results [28]. The cobalt complex-decorated carbon paste electrode exhibited a wide linear response range of 60-1489 µg/L, and it was successfully applied in foods such as orange and strawberry-flavored gelatin, powders, soft drinks, and pharmaceutical dosages [32]. However, the anodic peaks generally appeared at a rather positive potential (above 0.7 V), which may cause significant interfering from some species that are easily oxidized at such a high potential.…”

Section: Introductionmentioning

confidence: 99%

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Titania/Electro-Reduced Graphene Oxide Nanohybrid as an Efficient Electrochemical Sensor for the Determination of Allura Red

Jin

et al. 2020

Nanomaterials

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Titania/electro-reduced graphene oxide nanohybrids (TiO2/ErGO) were synthesized by the hydrolysis of titanium sulfate in graphene oxide suspension and in situ electrochemical reduction. It provides a facile and efficient method to obtain nanohybrids with TiO2 nanoparticles (TiO2 NPs) uniformly coated by graphene nanoflakes. TiO2/ErGO nanohybrids were characterized by transmission electron microscopy, X-ray diffraction, cyclic voltammogram, and electrochemical impedance spectroscopy in detail. Compared with pure ErGO and TiO2 NPs, TiO2/ErGO nanohybrids greatly enhanced the electrocatalytic activity and voltammetric response of Allura Red. In the concentration range of 0.5–5.0 μM, the anodic peak currents of Allura Red were linearly correlated to their concentrations. However, the linear relationship was changed to the semi-logarithmic relationship at a higher concentration region (5.0–800 μM). The detection limit (LOD) was 0.05 μM at a signal-to-noise ratio of 3. The superior sensing performances of the proposed sensor can be ascribed to the synergistic effect between TiO2 NPs and ErGO, which provides a favorable microenvironment for the electrochemical oxidation of Allura Red. The proposed TiO2/ErGO/GCE showed good reproducibility and stability both in determination and in storage, and it can accurately detect the concentration of Allura Red in milk drinks, providing an efficient platform for the sensitive determination of Allura Red with high reliability, simplicity, and rapidness.

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Section: Electrochemical Response Of Allura Red On Different Modifiedcontrasting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Titania/Electro-Reduced Graphene Oxide Nanohybrid as an Efficient Electrochemical Sensor for the Determination of Allura Red

Jin

et al. 2020

Nanomaterials

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“…Using glassy carbon, Mo 4+ is oxidized to less positive potential values between−0.3 and−0.4 V . Compared with other metal ion oxides, such as copper combined with carbon paste, Mo 4+ requires more energy to oxidize .Figure B shows how the presence of Mo 4+ in the electrode changes the redox effect of the Fe 3+/2+ system, increasing the energy required for oxidation and preventing the reduction of oxidized iron in the first stage, which makes the system less reversible and increases the oxidation current. This may be due to the formation of an inter metal complex between Mo−Fe.…”

Section: Resultsmentioning

confidence: 99%

“…These reports show a considerable increase in the concentration of these dyes, increasing from 0.80 μg/mL to almost 50.0 μg/mL in a period of almost 15 years. Using electroanalytical techniques, a cobalt complex has been reported to detect allura red in pharmaceutical samples of paracetamol syrup [31].…”

Section: Introductionmentioning

confidence: 99%

A New Electrochemical Method to Detect Sunset Yellow, Tartrazine and Thiomersal in a Pharmaceutical Dose Using a Carbon Paste Electrode Decorated with Molybdenum Oxide

et al. 2020

Self Cite

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This report allowed the detection of three substances using a carbon paste decorated with MoO 2 (MoO/CPE). Tartrazine (TZ), sunset yellow (SY) and thiomersal (TMS) were analyzed for adsorptive voltammetry. The electrode was characterized by scanning electron microscopy, energy dispersive spectroscopy and cyclic voltammetry. TZ, SY and TMS were observed at 1.07, 0.80 and 0.95 V respectively. The detection limits (3*σ/m) for TZ, SY and TMS were 0.04, 0.06 and 0.10 μmol/L, respectively. The new analytical method was applied using pharmaceutical samples.

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Modified Electrochemical Sensors for the Detection of Selected Food Azo Dyes: A Review

Cardenas‐Riojas,

Calderon‐Zavaleta,

Quiroz‐Aguinaga

et al. 2023

ChemElectroChem

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There are plenty of evidence that consuming high levels of azo dyes, such as Tartrazine, Sunset Yellow, Allura Red, Ponceau 4R, Amaranth, Sudan, and Azorubine, is associated with serious health problems. Therefore, electrochemical sensors have been developed for their effective detection, also offering low cost, portability, and the fact that they do not require harmful solvents. They are customarily employed in several electrochemical techniques, including cyclic voltammetry, differential pulse voltammetry, and square wave voltammetry. The most commonly employed materials in the manufacturing of electrochemical sensors are carbonaceous materials given their high stability, surface area, and conductivity. Employing these carbonaceous materials results in an enhanced sensitivity of electrochemical sensors when detecting azo dyes. To further improve the sensors, these materials are modified with metal oxides, polymers, polysaccharide, ionic liquids, and metal nanoparticles, allowing the detection of ultra‐sensitive traces of azo dyes. Therefore, this review provides an overview of the characteristics of modified carbonaceous materials and their applications for the detection of food azo dyes, along with a summary of the currently employed electroanalytical detection methods. Additionally, this review discusses the development of novel nanomaterials and their technological advances, while exploring their potential environmental and health impacts within the food industry.

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Simultaneous determination of tartrazine, sunset yellow and allura red in foods using a new cobalt-decorated carbon paste electrode

Cited by 34 publications

References 40 publications

Titania/Electro-Reduced Graphene Oxide Nanohybrid as an Efficient Electrochemical Sensor for the Determination of Allura Red

Titania/Electro-Reduced Graphene Oxide Nanohybrid as an Efficient Electrochemical Sensor for the Determination of Allura Red

A New Electrochemical Method to Detect Sunset Yellow, Tartrazine and Thiomersal in a Pharmaceutical Dose Using a Carbon Paste Electrode Decorated with Molybdenum Oxide

Modified Electrochemical Sensors for the Detection of Selected Food Azo Dyes: A Review

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