FOOD CHEMISTRY
·
2022
·
IF 9.231
Yongfeng Chen,Geoffrey I.N. Waterhouse,Hemei Sun,Xuguang Qiao,Yufeng Sun,Zhixiang Xu
In this work, a novel ratiometric electrochemical sensor based on dual-functional poly-dopamine (PDA) and nickel sulfide@hollow carbon spheres (NiS@HCS) was successfully developed for sunset yellow (SY) detection. The NiS@HCS nanocomposite possessing a large specific surface area, good catalytic activity and excellent electrical conductivity was employed for signal amplification. PDA films prepared by electropolymerization acted as an internal reference probe and enhanced the sensitivity of the proposed sensor through electrostatic attraction between SY and PDA. Under optimized conditions, the developed PDA/NiS@HCS/GCE sensor allowed SY quantification over wide linear range (0.01–100 μM), with a low limit of detection of 0.003 μM. SY recovery tests were carried out in rice vinegar and cooking wine with satisfactory recoveries (83.50–112.80 %). Meanwhile, the content of SY in two kinds of carbonated drinks was determined using the constructed sensor and a UV–Vis spectrometry method, with no significant difference found in the results.
研究领域:
食品科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Xiaoting Guo,Jinping Song,Jianhua Xue,Qi Ma
Sunset Yellow (SY), a widely used food additive, poses health risks when consumed in excess. Therefore, it is necessary to develop method for the detection of SY in different foodstuffs. In this study, we synthesized concentration-tunable nitrogen and bromine co-doped functional carbon quantum dots (CQDs) through a simple solvothermal method utilizing Tetrabromophthalic anhydride and Ethylenediamine. The synthesized CQDs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), UV–Vis absorption spectra and fluorescence spectrophotometer. Notably, the CQDs exhibited a high fluorescence quantum yield of 25.85 %, and their fluorescence was effectively quenched by SY, thus enabling the development of a fluorescent probe for SY detection. Consequently, a novel fluorescent probe was established with a linear range of 0.03–100 μmol/L and a limit of detection (LOD) of 0.01 μmol/L. This probe was validated for SY quantification in various food samples, achieving recovery rates between 98.27 % and 108.67 %, with a relative standard deviation (RSD) of less than 3.76 %, indicating promising application prospects.
研究领域:
分析化学
·
纳米材料
·
食品安全
·
荧光传感
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Yongming Guo,Tiancheng Fang,Jie Li,Zurong Chen,Yubin Xiang,Tao Tao
Yellow-green emissive carbon quantum dots (CQDs) were synthesized via the pyrolysis of sodium citrate and urea in the air. The as-synthesized CQDs manifested bright fluorescence with a maximum emission peak at 520 nm, a quantum yield of 8.43%, excellent photostability, and outstanding stability in high-salt conditions. The CQDs were used for the selective detection of sunset yellow (SY). The presence of SY resulted in a remarkable reduction in the fluorescence of the CQDs, which was caused by the inner filter effect. A good linear relationship was achieved in the range of 0-30 uM with a limit of detection of 0.22 uM. Additionally the CQDs were exploited in anti-counterfeiting and the fabrication of light-emitting diodes with satisfactory performance.
研究领域:
材料科学
·
分析化学
·
光学
✓ 已验证
DOI
高影响因子
MOLECULES
·
2019
·Vol. 24
·期 6
·1178
·
IF 3.06
Ziyu Ding,Peihong Deng,Yiyong Wu,Yaling Tian,Guangli Li,Jun Liu,Quanguo He
The nanohybrid of electrochemically-reduced graphene oxide (ERGO) nanosheets decorated with MnO2nanorods (MnO2NRs) was modified on the surface of a glassy carbon electrode (GCE). Controlled potential reduction was applied for the reduction of graphene oxide (GO). The characterization was performed by scanning electron microscopy, X-ray diffraction and cyclic voltammetry. Compared with the poor electrochemical response at bare GCE, a well-defined oxidation peak of sunset yellow (SY) was observed at the MnO2NRs-ERGO/GCE, which was attributed to the high accumulation efficiency as well as considerable electrocatalytic activity of ERGO and MnO2NRs on the electrode surface. The experimental parameters for SY detection were optimized in detail. Under the optimized experiment conditions, the MnO2NRs-ERGO/GCE showed good linear response to SY in concentration range of 0.01–2.0 μM, 2.0–10.0 μM and 10.0–100.0 μM with a detection limit of 2.0 nM. This developed method was applied for SY detection in soft drinks with satisfied detected results.
研究领域:
食品科学
·
分析化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Yue Li,Ping Liu,Shisen Li,Yanting Ren,Wenzhen Du,Wenjing Yin,Haiyan Jiang,Qingli Yang,Yongchao Ma
In this study, novel Ni-doped N-vacancy coral-like porous tubular g-C3N4 (Ni–CN) nanocomposites were fabricated through a simple calcination strategy. The Ni–CN photocatalysts exhibited superior photocatalytic efficacy in the degradation of sunset yellow (SY) when exposed to visible light irradiation. The optimized Ni–CN nanocomposite contributed the highest SY removal efficiency of 96.87% after 120 min of irradiation, showing good reusability and structural stability. The as-prepared Ni–CN gel spheres had a high removal rate of SY from orange juice. In addition, Ni–CN nanosheets (Ni–CN NSs) obtained by ultrasonic stripping can be used as highly selective and sensitive fluorescent sensors for the detection of SY in beverages through dynamic or collisional fluorescence quenching mechanisms. The linear range of Ni–CN NSs for SY detection was 0–80 μM and the detection limit was 0.0397 μM. Here, the constructed Ni–CN nanocomposites provide a novel route for efficient removal and sensitive detection of SY in beverages.
研究领域:
材料科学
·
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Yanjia Guo,Juan Lu,Jing Wang,Yujia Song,Ruidan Li,Li Tian
PM6 is a polymer donor characterized by a wide bandgap, commonly utilized in high-performance polymer solar cells. In this study, we applied PM6 to the field of electrochemiluminescence for the first time. By sequentially modifying PM6, CS@luminol and ZIF-8 on the electrode, we constructed a simple yet novel electrochemiluminescence (ECL) sensor for the detection of the colorant sunset yellow (SY). As a donor, PM6 enhanced the charge transfer rate within the system and improved its luminescence performance. CS served to stabilize the luminescent reagent due to its viscosity. ZIF-8 acted as an accelerator in the luminol luminescence system, facilitating the absorption of more active oxygen and generating additional reactive species on the electrode surface. The combined action of PM6 and ZIF-8 resulted in a luminol ECL sensor that exhibited a sensitive and stable signal. When exposed to sunset yellow, the ECL signal diminished consistently with increasing concentrations of SY. Under optimal conditions, the ECL attenuation signal demonstrated a linear relationship with the logarithm of SY concentration, with a linear range of 5.0 × 10 − 13 –5.0 × 10 − 8 mol L -1 , and a detection limit of 1.67 × 10 −13 mol L -1 (S/N = 3). The constructed sensor exhibited excellent stability, selectivity, and repeatability, making it suitable for the actual detection of sunset yellow in sports drinks.
研究领域:
分析化学
·
食品科学
✓ 已验证
产品关联
DOI
高影响因子
Food Analytical Methods
·
2017
·Vol. 10
·期 7
·2293-2301
·
IF 2.038
Qin Changchun,Guo Wenlu,Liu Yan,Liu Zhanchao,Qiu Jian,Peng Jianbo
In this study, a new imprinted electrochemical sensor for selectively detecting sunset yellow was developed based on glassy carbon electrode (GCE) modified by graphene oxide decorated with silver nanoparticles–molecular imprinted polymers (GO/AgNPs–MIPs). GO/AgNPs were firstly synthesized using self-assembly technology, and GO/AgNPs–MIPs were synthesized through surface imprinted technology by using GO/AgNPs as the substrate and sunset yellow as the template, respectively. The sensor was prepared by a drop-casting method. The synthetic materials were characterized by transmission electron microscope (TEM), Fourier transmission infrared spectra (FT-IR), and X-ray diffraction (XRD). The sensor was characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The usage amount of GO/AgNPs–MIPs suspensions, solution pH, and accumulation time made an important difference in the process of detecting sunset yellow. Under optimal conditions, the peak current is linear to concentration of sunset yellow in the ranges of 0.1–0.6 and 0.6–12 μM, and the limit of detection was estimated to be 0.02 μM ( S / N = 3). Finally, the proposed sensor was applied to detect sunset yellow in soft drinks with acceptable recovery, which demonstrated that the sensor could be used as a reliable and simple method for practical detection of sunset yellow.
研究领域:
分析化学
·
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2023
·
IF 6.6
Junhong Li,Danhua Zhu,Hui Huang,Shuqian Xie,Jingkun Xu,Ruirui Yue,Xuemin Duan
Herein, the electrochemical sensing platform has been proposed based on metal-organic framework doped Au/poly(3,4-ethylenedioxythiophene) (PEDOT) composites to simultaneously detect the catechin and sunset yellow in tea beverage. The characterization reveals that the Au nanoparticles distribute well on/in conducting PEDOT, and the relatively few UIO-66 particles as the dopant intersperse the Au/PEDOT composites. The electrochemical test has been used to study the sensing properties toward catechin and sunset yellow simultaneous detection. The results show that the Au/PEDOT/MWCNT-CONH-UIO-66 performs a wide range of 0.03∼60 µM and 0.3∼40 µM, low detection limit as 0.01 μM / 0.15 μM towards catechin and sunset yellow simultaneous detection, respectively. Furthermore, the Au/PEDOT/MWCNT-CONH-UIO-66 possesses a wide linear detection range and high sensitivity for catechin and sunset yellow detection. Moreover, the Au/PEDOT/MWCNT-CONH-UIO-66 composite also has great stability and anti-interference ability. Finally, the sensing platform was applied to detect catechin and sunset yellow in the tea beverage compared with the high-performance liquid chromatography method. To the best of our knowledge, our work first reported the electrochemical sensing materials for catechin and sunset yellow simultaneous detection in food, which will provide a certain theoretical analysis and experimental experience for the preparation of materials used for catechin and sunset yellow simultaneous detection in food.
研究领域:
食品科学
·
电化学传感
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2019
·Vol. 30
·期 47
·475503
·
IF 3.399
Xue Ma,Daian Chen,Xiaolong Tu,Feng Gao,Yu Xie,Runying Dai,Limin Lu,Xiaoqiang Wang,Fengli Qu,Yongfang Yu,Xigen Huang,Guangbin Liu
Electrochemical methods have been deemed effective strategies for the detection of dye additive sunset yellow (SY) owing to their low cost, good stability, and high sensitivity. However, the application of the existing sensors with single electrical signal response is limited by their inadequate sensitivity and large background interference. Herein, a ratiometric electrochemical strategy with a dual signal was developed to detect SY. The strategy had an intrinsic built-in correction to the effects from the system, and thus reduced the influence of environmental change. 3D polyethyleneimine functionalized reduced graphene oxide aerogels@Au nanoparticles/SH-β-cyclodextrin (PEI-rGAs@AuNPs/SH-β-CD) was used as the sensing material due to its 3D macroporous microstructure with high specific surface area and excellent electronic conductivity. Guest molecule methylene blue (MB) was chosen as a probe molecule, which formed an inclusion host–guest complex with a SH-β-CD host in advance. The target molecule SY displaced MB from the CD cavities, resulting in the decrease of MB current and the increase of SY current. With the logarithmic value of ISY/IMB as the readout signal, the detection limit of the developed ratiometric electrochemical sensor reached as low as 0.3 nM, confirming the excellent sensitivity. Furthermore, this strategy exhibited good selectivity and repeatability, and could be used for the detection of SY in a real sample.
研究领域:
分析化学
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Analytical Methods
·
2016
·Vol. 10
·期 1
·200-209
·
IF 2.167
Yu Lanlan,Zheng Huijun,Shi Mengxing,Jing Shasha,Qu Lingbo
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.
研究领域:
生物医学工程
·
分析化学
·
食品安全检测
·
纳米材料应用
·
电化学分析
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2014
·
IF 3.84
Lanlan Yu,Mengxing Shi,Xiu Yue,Lingbo Qu
A new and sensitive electrochemical sensor based on hexadecyltrimethylammonium bromide (CTAB) functionalized graphene supported platinum nanoparticles (CTAB-Gr-Pt) composite was fabricated via one step hydrothermal method . CTAB acted as a surfactant and absorbed platinum nanoparticles (Pt NPs) on the graphene surface. The CTAB-Gr-Pt composite greatly improved the oxidation activity of sunset yellow, owing to the synergistic effect of the large surface area and electrocatalytic activity of both Gr and Pt NPs, and further increased the sensitivity of the method. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to investigate the electrochemical behavior of sunset yellow. Under the optimized experimental conditions, the oxidation peak currents of sunset yellow were proportional to its concentrations in the range of 0.08–10 μmol L −1 and the limit of detection was 4.2 nmol L −1 . The developed method showed high sensitivity and selectivity and was successfully applied to determine sunset yellow in soft drinks with satisfactory recoveries. The proposed method provides a sensitive and simple option for sunset yellow detection in the field of food safety.
研究领域:
食品科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
Food Analytical Methods
·
2018
·Vol. 11
·期 8
·2158-2171
·
IF 2.245
Lin Baohong,Li Song,Fang Lei,Zhu Minliang,Xiong Chunhua
Sunset yellow, as a common pigment, is harmful to people’s health. In this work, a new sensitive adsorbent based on the chlorination peanut shell and HBP-NH 2 was fabricated via one-step synthesis. Optimization of the modified peanut shell was carried out at different temperatures, different molar ratios of reagents, and different time intervals in HBP-NH 2 using Response Surface Methodology (RSM) for the first attempt. The structure of modified peanut shell was characterized by FT-IR, SEM, and TGA analysis. The adsorption properties of the modified peanut shell for Sunset yellow were investigated by batch and column experiments. Batch adsorption’s results suggested that modified peanut shell had a high adsorption capability for Sunset yellow and its maximum saturated adsorption capacity was 468.0 mg/g at 308 K, estimated from the Langmuir model. Furthermore, the modified peanut shell can be eluted easily using 3 mol/L NaOH. The proposed method was successfully applied to quantify the amount of SY in jelly and soft drinks with good recovery valuing from 98 to 104%. Hence, the proposed sensor shows a rapid and sensitive method, low cost, and simple, which is appropriate for alternative technique use for the analysis of food colorants in commercial products.
研究领域:
化学工程
·
食品安全分析
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）