scholarly journals Anodization in Oligo (Ethylene Glycol) as an Initial Derivatization Tool for Preparing Glassy Carbon Electrodes Covalently Modified with Amino Compounds: Effective Access to a 2,2,6,6-Tetramethylpiperidinyl-1-oxyl (TEMPO)-Modified Glassy Carbon Electrode.

2001 ◽  
Vol 49 (10) ◽  
pp. 1349-1351 ◽  
Author(s):  
Hatsuo MAEDA ◽  
Yoshimi SAKA-IRI ◽  
Takashi OGASAWARA ◽  
Cheng Zhu HUANG ◽  
Yuji YAMAUCHI ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrodes ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Glassy Carbon Electrodes ◽  
Amino Compounds

scholarly journals Electrochemical Sensor for Ethylene Glycol using Reduced Graphene Oxide/AuNp/Ni(OH)2 Modified Glassy Carbon Electrode

2021 ◽  
Vol 24 (5) ◽  
Author(s):  
Victor Magno Paiva ◽  
Kelly Leite dos Santos Castro Assis ◽  
José G. A. Rodrigues ◽  
Carlos Alberto Senna ◽  
Paula F. de Aguiar ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ethylene Glycol ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Reduced Graphene

Electrocatalytic Reduction of Nitrite at Carbon-Nanotube-Modified Glassy Carbon Electrodes

2011 ◽  
Vol 306-307 ◽  
pp. 1221-1224
Author(s):  
Dan Zi Sun
Keyword(s):  
Carbon Nanotube ◽  
Glassy Carbon ◽  
Differential Pulse ◽  
Carbon Electrodes ◽  
Carbon Electrode ◽  
Electrocatalytic Reduction ◽  
Modified Glassy Carbon Electrode ◽  
Electrocatalytic Property ◽  
Glassy Carbon Electrodes ◽  
Pulse Voltammetry

Carbon-nanotube(CNT)-modified glassy carbon electrodes exhibiting strong electrocatalytic response toward nitrite are described. Cyclic voltammetry and differential pulse voltammetry are used to investigate the electrocatalytic property of CNT-modified glassy carbon electrode toward the reduction of nitrite. The modified electrode could be used for nitrite sensing.

The selective electrochemical detection of homocysteine in the presence of glutathione, cysteine, and ascorbic acid using carbon electrodes

The Analyst ◽  
2014 ◽  
Vol 139 (15) ◽  
pp. 3755-3762 ◽  
Author(s):  
P. T. Lee ◽  
D. Lowinsohn ◽  
R. G. Compton
Keyword(s):  
Ascorbic Acid ◽  
Carbon Nanotube ◽  
Glassy Carbon Electrode ◽  
Electrochemical Detection ◽  
Glassy Carbon ◽  
Addition Reaction ◽  
Carbon Electrodes ◽  
Carbon Electrode ◽  
Michael Addition Reaction ◽  
Modified Glassy Carbon Electrode

The detection of homocysteine, HCys, was achieved with the use of catecholvia1,4-Michael addition reaction using carbon electrodes: a glassy carbon electrode and a carbon nanotube modified glassy carbon electrode.

Covalent attachment of diphosphine ligands to glassy carbon electrodes via Cu-catalyzed alkyne-azide cycloaddition. Metallation with Ni(ii)

2015 ◽  
Vol 44 (27) ◽  
pp. 12225-12233 ◽  
Author(s):  
Atanu K. Das ◽  
Mark H. Engelhard ◽  
Sheri Lense ◽  
John A. S. Roberts ◽  
R. Morris Bullock
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Electrode Surface ◽  
Click Reaction ◽  
Covalent Attachment ◽  
Carbon Electrodes ◽  
Diphosphine Ligands ◽  
Carbon Electrode ◽  
Glassy Carbon Electrodes

Covalent tethering of a P2N2 ligand to a planar, azide-terminated glassy carbon electrode surface was accomplished using a CuI-catalyzed “click” reaction, followed by metallation with NiII.

Enantioselective discrimination of l-/d-phenylalanine by bovine serum albumin and gold nanoparticles modified glassy carbon electrode

2015 ◽  
Vol 7 (7) ◽  
pp. 3022-3027 ◽  
Author(s):  
Bingdi Liu ◽  
Xin Zhang ◽  
Yaping Ding ◽  
Liqiang Luo ◽  
Fenfen Zhang
Keyword(s):  
Gold Nanoparticles ◽  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Gold Nanoparticle ◽  
Glassy Carbon ◽  
Bovine Serum ◽  
Carbon Electrodes ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Glassy Carbon Electrodes

A new chiral biosensor able to discriminate and detect phenylalanine (Phe) enantiomers was fabricated by immobilizing bovine serum albumin (BSA) on gold-nanoparticle-modified glassy carbon electrodes.

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

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.

Solar Exfoliated Graphene Oxide: A Platform for Electrochemical Sensing of Epinephrine

2020 ◽  
Vol 16 (4) ◽  
pp. 393-403 ◽  
Author(s):  
Renjini Sadhana ◽  
Pinky Abraham ◽  
Anithakumary Vidyadharan
Keyword(s):  
Cyclic Voltammetry ◽  
Graphene Oxide ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Simultaneous Detection ◽  
Differential Pulse ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Reduced Graphene ◽  
Pulse Voltammetry

Introduction: In this study, solar exfoliated graphite oxide modified glassy carbon electrode was used for the anodic oxidation of epinephrine in a phosphate buffer medium at pH7. The modified electrode showed fast response and sensitivity towards Epinephrine Molecule (EP). The electrode was characterized electrochemically through Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV). Area of the electrode enhanced three times during modification and studies reveal that the oxidation process of EP occurs by an adsorption controlled process involving two electrons. The results showed a detection limit of 0.50 ± 0.01μM with a linear range up to 100 μM. The rate constant calculated for the electron transfer reaction is 1.35 s-1. The electrode was effective for simultaneous detection of EP in the presence of Ascorbic Acid (AA) and Uric Acid (UA) with well-resolved signals. The sensitivity, selectivity and stability of the sensor were also confirmed. Methods: Glassy carbon electrode modified by reduced graphene oxide was used for the detection and quantification of epinephrine using cyclic voltammetry and differential pulse voltammetry. Results: The results showed an enhancement in the electrocatalytic oxidation of epinephrine due to the increase in the effective surface area of the modified electrode. The anodic transfer coefficient, detection limit and electron transfer rate constant of the reaction were also calculated. Conclusion: The paper reports the determination of epinephrine using reduced graphene oxide modified glassy carbon electrode through CV and DPV. The sensor exhibited excellent reproducibility and repeatability for the detection of epinephrine and also its simultaneous detection of ascorbic acid and uric acid, which coexist in the biological system.

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