Electrochemical Sensor for o-Nitrophenol Based onβ-Cyclodextrin Functionalized Graphene Nanosheets

An electrochemical sensor for the quantification of o-nitrophenol (o-NP) has been developed based on theβ-cyclodextrin functionalized graphene nanosheets modified glassy carbon electrode (CD-GNs/GCE). The results indicated that CD-GNs showed good electrochemical behavior to the redox of o-NP which is attributed to the combination of the excellent properties of graphene and cyclodextrin. The peak currents possess a linear relationship with the concentration of o-NP in the range of 5–400 μM. The detection limit of o-NP reached to 0.3 μM on the basis of the signal-to-noise characteristics (S/N=3). The peak potentials for the reversible redox waves are not affected by other nitrophenol isomers (m, p-NP), illustrating good selectivity. Furthermore, the developed electrochemical sensor exhibited good stability and reproducibility for the detection of o-NP and could be used to determine o-NP in real water sample.

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A Novel Electrochemical Sensor for the Analysis of Salbutamol in Pork Samples by Using NiFe2O4 Nanoparticles Modified Glassy Carbon Electrode

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.850-851.1279 ◽

2013 ◽

Vol 850-851 ◽

pp. 1279-1282 ◽

Cited By ~ 1

Author(s):

Su Xing Luo ◽

Yuan Hui Wu ◽

Hua Gou ◽

Yan Liu

Keyword(s):

Detection Limit ◽

Electrochemical Sensor ◽

Glassy Carbon Electrode ◽

Glassy Carbon ◽

Electrochemical Method ◽

Carbon Electrode ◽

Modified Glassy Carbon Electrode ◽

Peak Current ◽

Anodic Peak Current ◽

Pork Samples

In this work, a simple and sensitive electrochemical method sensor was developed to determine salbutamol based on magnetic NiFe2O4nanoparticles modified glassy carbon electrode. It was found the anodic peak current of salbutamol was linear with the concentration of salbutamol from 2.0 μM to 60 μM with a detection limit of 1.0 μM (S/N=3). The developed method was successfully applied to determine salbutamol content in pork samples with satisfactory results.

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Ultrasensitive electrochemical sensor based on CdTe quantum dots-decorated poly(diallyldimethylammonium chloride)-functionalized graphene nanocomposite modified glassy carbon electrode for the determination of puerarin in biological samples

Electrochimica Acta ◽

10.1016/j.electacta.2015.05.139 ◽

2015 ◽

Vol 173 ◽

pp. 839-846 ◽

Cited By ~ 24

Author(s):

Ran Yang ◽

Dandan Miao ◽

Yiming Liang ◽

Lingbo Qu ◽

Jianjun Li ◽

...

Keyword(s):

Quantum Dots ◽

Electrochemical Sensor ◽

Glassy Carbon ◽

Biological Samples ◽

Carbon Electrode ◽

Functionalized Graphene ◽

Modified Glassy Carbon Electrode ◽

Diallyldimethylammonium Chloride ◽

Graphene Nanocomposite

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Molecularly Imprinted Electrochemical Sensor for the Determination of Sulfamethoxazole

Journal of New Materials for Electrochemical Systems ◽

10.14447/jnmes.v21i2.492 ◽

2018 ◽

Vol 21 (2) ◽

pp. 077-080 ◽

Cited By ~ 4

Author(s):

Benzhi Liu ◽

Guangqing Liu ◽

Bo Xiao ◽

Jinlong Yan

Keyword(s):

Carbon Nanotubes ◽

Detection Limit ◽

Electrochemical Sensor ◽

Carbon Electrode ◽

Modified Glassy Carbon Electrode ◽

Molecularly Imprinted ◽

Real Samples ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

A selective and sensitive molecularly imprinted electrochemical sensor was prepared based on the electropolymerization of methylthionine chloride on the multi-walled carbon nanotubes modified glassy carbon electrode. The proposed sensor was applied to the determination of sulfamethoxazole which showed a linear range of 2.4 to 23.6 µM, and a detection limit of 0.81 µM.The determination of sulfamethoxazole in real samples was also studied.

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Methyldopa electrochemical sensor based on a glassy carbon electrode modified with Cu/TiO2 nanocomposite

Journal of the Serbian Chemical Society ◽

10.2298/jsc170930024t ◽

2018 ◽

Vol 83 (7-8) ◽

pp. 863-874 ◽

Cited By ~ 39

Author(s):

Somayeh Tajik ◽

Hadi Beitollahi ◽

Pourya Biparva

Keyword(s):

Cyclic Voltammetry ◽

Detection Limit ◽

Electrochemical Sensor ◽

Glassy Carbon Electrode ◽

Glassy Carbon ◽

Urine Samples ◽

Carbon Electrode ◽

Modified Glassy Carbon Electrode ◽

Pulse Voltammetry ◽

Practical Feasibility

A Cu/TiO2 nanocomposite modified glassy carbon electrode (Cu/ /TiO2/GCE) was fabricated to detect methyldopa by cyclic voltammetry (CV) and different pulse voltammetry (DPV) methods. Compared with bare GCE, the Cu/TiO2/GCE exhibited excellent electrochemical activity for the oxidation of methyldopa. Using DPV technique, the calibration curves for methyldopa were found linear in the concentration range of 0.5?800.0 ?M and the detection limit (S/N = 3) was calculated to be 0.23 ?M. Additionally, the prepared electrochemical sensor of Cu/TiO2/GCE demonstrated a practical feasibility in methyldopa tablets and in urine samples analysis.

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Nanowire Modified Electrode for Sensitive Measurement of Nicotinic Acid

International Journal of Nanoscience ◽

10.1142/s0219581x14500161 ◽

2014 ◽

Vol 13 (03) ◽

pp. 1450016 ◽

Cited By ~ 1

Author(s):

S. Wang ◽

L. Z. Pei ◽

Y. K. Xie ◽

Z. Y. Cai

Keyword(s):

Detection Limit ◽

Nicotinic Acid ◽

Correlation Coefficient ◽

Glassy Carbon ◽

Signal To Noise Ratio ◽

Carbon Electrode ◽

Modified Glassy Carbon Electrode ◽

Signal To Noise ◽

Sensitive Method ◽

Good Detection

A simple and sensitive method has been developed to measure nicotinic acid using CuGeO 3 nanowire modified glassy carbon electrode (GCE). The CuGeO 3 nanowires can be attached firmly to the surface of the GCE. The modified GCE exhibits good detection performance for nicotinic acid with the correlation coefficient of 0.993 and 0.985 for cvp1 and cvp2, respectively. The detection limit is 9.2 μM and 0.83 μM, respectively at a signal-to-noise ratio of 3 with the linear range of 0.001–2 mM. The CuGeO 3 nanowire modified GCE exhibits good stability and reproducibility.

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Sensitive Detection of Levocetirizine as a new Generation Antihistamine by Stripping Square Wave Voltammetry

Current Pharmaceutical Analysis ◽

10.2174/1573412915666190802165833 ◽

2020 ◽

Vol 16 (4) ◽

pp. 424-437

Author(s):

Kubra Ozturk ◽

Nurgul K. Bakirhan ◽

Sibel A. Ozkan ◽

Bengi Uslu

Keyword(s):

Electrochemical Sensor ◽

Glassy Carbon Electrode ◽

Glassy Carbon ◽

Differential Pulse ◽

Real Sample ◽

Carbon Electrode ◽

Modified Glassy Carbon Electrode ◽

Square Wave ◽

Real Sample Analysis ◽

Tablet Dosage

Background:: new and selective electrochemical sensor was developed for the determination of levocetirizine dihydrochloride, which is an antihistaminic drug. Method:: The investigation was performed by using cyclic, differential pulse and square wave voltammetric methods on the β-cyclodextrin modified glassy carbon electrode. It is thereby planned to obtain information about levocetirizine determination and its mechanism. Result:: The efficiency of experimental parameters including pH, scan rate, and accumulation potential and time on the anodic response of levocetirizine dihydrochloride was studied. By employing the developed method and under optimized conditions, the current showed linear dependence with a concentration in the range between 2 × 10-8 M and 6 × 10-6 M in pH 2.0 Britton Robinson (BR) buffer. Conclusion:: The achieved limits of detection and quantification were found as 3.73 × 10-10 M and 1.24 × 10-9 M, respectively. In addition, the possibility of applying the developed sensor for real sample analysis was investigated, so β-cyclodextrin modified glassy carbon electrode was used to determine levocetirizine dihydrochloride in Xyzal® tablet dosage form. Finally, this sensor was successfully applied to the real sample as a selective, simple, reproducible, repeatable electrochemical sensor.

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Highly sensitive detection of hesperidin using AuNPs/rGO modified glassy carbon electrode

The Analyst ◽

10.1039/c7an01706e ◽

2018 ◽

Vol 143 (1) ◽

pp. 297-303 ◽

Cited By ~ 9

Author(s):

Yang Gao ◽

Xiufeng Wu ◽

Hui Wang ◽

Wenbo Lu ◽

Mandong Guo

Keyword(s):

Gold Nanoparticles ◽

Graphene Oxide ◽

Electrochemical Sensor ◽

Glassy Carbon Electrode ◽

Glassy Carbon ◽

Carbon Electrode ◽

Modified Glassy Carbon Electrode ◽

Reduced Graphene ◽

Highly Sensitive ◽

Highly Sensitive Detection

The highly sensitive and selective electrochemical sensor of hesperidin based on gold nanoparticles (AuNPs) and reduced graphene oxide (rGO) modified glassy carbon electrode (GCE) is reported.

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