Highly-sensitive electrochemical sensing platforms for food colourants based on the property-tuning of porous carbon

Cheng, Qin; Xia, Shanhong; Tong, Jianhua; Wu, Kangbing

doi:10.1016/j.aca.2015.06.013

Cited by 39 publications

(12 citation statements)

References 29 publications

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“…High-performance liquid chromatography determination of SY was carried out with a Waters 2695 liquid chromatograph coupled with an UV-vis detector. Chromatographic conditions were developed employing previously described conditions [10]. …”

Section: Methodsmentioning

confidence: 99%

“…Consequently, a simple, rapid, and highly sensitive method for SY detection is critical to monitor SY levels. Many techniques have been utilized for the determination of SY, such as high performance liquid chromatography [3,4,5], UV-visible, fluorescence, and Raman spectrometry [6,7,8,9], and electrochemical techniques [10,11,12,13,14,15,16,17]. Recently, due to the low cost, operational simplicity, high sensitivity, and fast response, electrochemical techniques have gained attention and have exhibited promising applications in SY analysis.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the unique properties such as high electrical and thermal conductivity, extremely high surface area/volume ratio, high mechanical strength, and even excellent catalytic properties [18], nanomaterials have been employed as outstanding electrode modifiers for the electrochemical detection of SY. Some examples of nanomaterial-modified electrodes developed for the electrochemical determination of SY include porous carbon-modified glassy carbon electrode (GCE) [10], gold nanoparticle-modified carbon paste electrode (CPE) [11], gold nanoparticle/graphene-modified GCE [12], Au–Pd and reduced graphene oxide nanocomposite-modified GCE [13], and polypyrrole-modified oxidized single-walled carbon nanotubes-modified GCE [14]. …”

Section: Introductionmentioning

confidence: 99%

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A Zinc Oxide Nanoflower-Based Electrochemical Sensor for Trace Detection of Sunset Yellow

Jiang

et al. 2017

Sensors

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Zinc oxide nanoflower (ZnONF) was synthesized by a simple process and was used to construct a highly sensitive electrochemical sensor for the detection of sunset yellow (SY). Due to the large surface area and high accumulation efficiency of ZnONF, the ZnONF-modified carbon paste electrode (ZnONF/CPE) showed a strong enhancement effect on the electrochemical oxidation of SY. The electrochemical behaviors of SY were investigated using voltammetry with the ZnONF-based sensor. The optimized parameters included the amount of ZnONF, the accumulation time, and the pH value. Under optimal conditions, the oxidation peak current was linearly proportional to SY concentration in the range of 0.50–10 μg/L and 10–70 μg/L, while the detection limit was 0.10 μg/L (signal-to-noise ratio = 3). The proposed method was used to determine the amount of SY in soft drinks with recoveries of 97.5%–103%, and the results were in good agreement with the results obtained by high-performance liquid chromatography.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Zinc Oxide Nanoflower-Based Electrochemical Sensor for Trace Detection of Sunset Yellow

Jiang

et al. 2017

Sensors

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“…The LOD was found of 0.3 μM with relative standard deviation (RSD) more than 5.0%. Cheng et al (2015) have prepared a series of porous carbon (PC) using CaCO 3 nanoparticles as the hard template and starch as the carbon precursor to determine azo dyes including Allura Red. The LOD was determined on the range of 1.4–1.7 μg L -1 .…”

Section: Advanced Techniques For Determination Of Allura Red Acmentioning

confidence: 99%

Extraction, Analytical and Advanced Methods for Detection of Allura Red AC (E129) in Food and Beverages Products

2016

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Allura Red AC (E129) is an azo dye that widely used in drinks, juices, bakery, meat, and sweets products. High consumption of Allura Red has claimed an adverse effects of human health including allergies, food intolerance, cancer, multiple sclerosis, attention deficit hyperactivity disorder, brain damage, nausea, cardiac disease and asthma due to the reaction of aromatic azo compounds (R = R′ = aromatic). Several countries have banned and strictly controlled the uses of Allura Red in food and beverage products. This review paper is critically summarized on the available analytical and advanced methods for determination of Allura Red and also concisely discussed on the acceptable daily intake, toxicology and extraction methods.

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“…The detection of colorants in food samples can be done by chromatographic [20,21], spectrophotometric [22,23] and by electrochemical methods [24][25][26]. In this context, the electrochemical sensors offer an analytical alternative to classical approaches, reaching low limits of detection.…”

Section: Introductionmentioning

confidence: 99%

MWCNT‐modified Electrode for Voltammetric Determination of Allura Red and Brilliant Blue FCF in Isotonic Sport Drinks

et al. 2019

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A fast and simple electrochemical sensor is presented for the determination of allura red and brilliant blue in isotonic sport drinks, using a glassy carbon electrode modified with multi‐walled carbon nanotubes. The electrochemical behavior of the colorants was studied by cyclic and differential pulse voltammetry in 0.1 M PBS, pH 7.0. The solution pH, the amount of nanomaterial on the surface of the electrode and the accumulation time of each colorant were optimized. Under the optimal conditions, the sensor exhibited a linear response to allura red and brilliant blue with detection limits of 7 μg L−1 and 52 μg L−1, respectively. The sensor was applied to the analysis of commercial isotonic sports drinks that contain individual or mixed colorants, showing good sensitivity and reproducibility. The results were compared with a chromatographic method showing that the levels of colorants are low and did not show a risk for a consumer's health.

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Highly-sensitive electrochemical sensing platforms for food colourants based on the property-tuning of porous carbon

Cited by 39 publications

References 29 publications

A Zinc Oxide Nanoflower-Based Electrochemical Sensor for Trace Detection of Sunset Yellow

A Zinc Oxide Nanoflower-Based Electrochemical Sensor for Trace Detection of Sunset Yellow

Extraction, Analytical and Advanced Methods for Detection of Allura Red AC (E129) in Food and Beverages Products

MWCNT‐modified Electrode for Voltammetric Determination of Allura Red and Brilliant Blue FCF in Isotonic Sport Drinks

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