Electrochemical Determination of Neurotransmitters Using Gold Nanoparticles on Nafion/Carbon Paste Modified Electrode

2012 ◽  
Vol 159 (10) ◽  
pp. H765-H771 ◽  
Author(s):  
Nada F. Atta ◽  
Ahmed Galal ◽  
Shereen M. Azab
Keyword(s):  
Gold Nanoparticles ◽  
Modified Electrode ◽  
Electrochemical Determination ◽  
Carbon Paste ◽  
Carbon Paste Modified Electrode

Simultaneous electrochemical determination of hydrazine and hydroxylamine by CuO doped in ZSM-5 nanoparticles as a new amperometric sensor

2017 ◽  
Vol 41 (22) ◽  
pp. 13712-13723 ◽  
Author(s):  
Sedigheh Rostami ◽  
Seyed Naser Azizi ◽  
Shahram Ghasemi
Keyword(s):  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Modified Electrode ◽  
Electrochemical Determination ◽  
Amperometric Sensor ◽  
Carbon Paste ◽  
Carbon Paste Modified Electrode

In this work, a novel electrochemical sensor using a carbon paste modified electrode with CuO doped in ZSM-5 nanoparticles (CuO/ZSM-5 NPs/CPE) is successfully fabricated for simultaneous determination of hydrazine (HY) and hydroxylamine (HA).

Differential Pulse Voltammetric Determination of Piroxicam on Lanthanide Ferric Oxide Nanoparticles-Carbon Paste Modified Electrode

2018 ◽  
Vol 14 (3) ◽  
pp. 271-276 ◽  
Author(s):  
Isaac Yves Lopes de Macedo ◽  
Morgana Fernandes Alecrim ◽  
Luane Ferreira Garcia ◽  
Aparecido Ribeiro de Souza ◽  
Wallans Torres Pio dos Santos ◽  
...  
Keyword(s):  
Modified Electrode ◽  
Ferric Oxide ◽  
Differential Pulse ◽  
Voltammetric Determination ◽  
Oxide Nanoparticles ◽  
Carbon Paste ◽  
Carbon Paste Modified Electrode

Electrochemical determination of dopamine and ascorbic acid at a novel gold nanoparticles distributed poly(4-aminothiophenol) modified electrode

Talanta ◽  
2007 ◽  
Vol 71 (4) ◽  
pp. 1774-1781 ◽  
Author(s):  
Anantha Iyengar Gopalan ◽  
Kwang-Pill Lee ◽  
Kalayil Manian Manesh ◽  
Padmanabhan Santhosh ◽  
Jun Heon Kim ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ascorbic Acid ◽  
Modified Electrode ◽  
Electrochemical Determination

Voltamperometric determination of kinetin with a carbon paste modified electrode

2003 ◽  
Vol 74 (2) ◽  
pp. 193-202 ◽  
Author(s):  
Y. Ballesteros ◽  
M.J. Gonzalez de la Huebra ◽  
M.C. Quintana ◽  
P. Hernandez ◽  
L. Hernandez
Keyword(s):  
Modified Electrode ◽  
Carbon Paste ◽  
Carbon Paste Modified Electrode

Electrochemical determination of diethylstilbestrol in livestock and poultry meats by L-cysteine/gold nanoparticles modified electrode

2021 ◽  
Vol 164 ◽  
pp. 105952
Author(s):  
Junquan Wu ◽  
Xiaojuan Zhao ◽  
Yuting Zou ◽  
Xiaochun Wu ◽  
Weidong Bai ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Modified Electrode ◽  
Electrochemical Determination

scholarly journals A Low-Cost Layered Double Hydroxide (LDH) Based Amperometric Sensor for the Detection of Isoproturon in Water Using Carbon Paste Modified Electrode

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Herve Leclerc Tcheumi ◽  
Aude Peggy Kameni Wendji ◽  
Ignas Kenfack Tonle ◽  
Emmanuel Ngameni
Keyword(s):  
Layered Double Hydroxide ◽  
Modified Electrode ◽  
Carbon Paste Electrode ◽  
Aqueous Environment ◽  
Carbon Paste ◽  
Relative Standard ◽  
Double Hydroxide ◽  
Paste Electrode ◽  
Carbon Paste Modified Electrode

In this work, a Layered Double Hydroxide (NiAl-LDH) was obtained by coprecipitation method and used to elaborate an electrochemical sensor for the determination of isoproturon, which is a hazardous pollutant, widely used in agriculture, and its residue is distributed into aqueous environment through run-off and leaching from the soil. Various physicochemical techniques such as FT-IR spectroscopy, X-ray diffraction, and thermal analysis were used to characterize this material. The anionic exchange capacity of NiAl-LDH on carbon paste modified electrode was investigated toward [Fe(CN)6]3- using cyclic voltammetry. Used as electrode modifier of carbon paste electrode for isoproturon detection, a remarkable increase in isoproturon signal on modified carbon paste electrode by LDH was observed. The peak current obtained after 3 min of preconcentration in 25 μM ISO on NiAl-LDH/CPE was 2.6 times higher than that exhibited by the same analyte on the unmodified CPE, thereby opening the way to the development of a sensitive method for the detection of ISO. Other parameters that can affect the stripping response (preconcentration time, pH of detection medium, and LDH loading within the paste) were investigated to optimize the proposed sensor. After optimization, a linear calibration curve was obtained in the concentration range from 2 × 10−8 to 1.8 × 10−7 M, leading to a detection limit of 1 × 10−9 M (S/N = 3). The relative standard deviation for 5 identical measurements was 2.7%. The interfering effect of some compounds and ions was examined on the stripping response of ISO. The applicability of the method was verified by the determination of ISO in spiked water sample.

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