Dual descriptor analysis of cetylpyridinium modified carbon paste electrodes for ascorbic acid sensing applications

2021 ◽  
pp. 116348
Author(s):  
Gururaj Kudur Jayaprakash ◽  
B.E. Kumara Swamy ◽  
Shashanka Rajendrachari ◽  
S.C. Sharma ◽  
Roberto Flores-Moreno
Keyword(s):  
Ascorbic Acid ◽  
Carbon Paste ◽  
Dual Descriptor ◽  
Carbon Paste Electrodes ◽  
Sensing Applications ◽  
Descriptor Analysis ◽  
Modified Carbon Paste Electrodes

scholarly journals Influence of Nitrogen-Doped Carbon Dot and Silver Nanoparticle Modified Carbon Paste Electrodes on the Potentiometric Determination of Tobramycin Sulfate: A Comparative Study

Chemosensors ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 52
Author(s):  
Nermine V. Fares ◽  
Passant M. Medhat ◽  
Christine M. El Maraghy ◽  
Sherif Okeil ◽  
Miriam F. Ayad
Keyword(s):  
Silver Nanoparticle ◽  
Carbon Nanodots ◽  
Carbon Paste ◽  
X Ray Diffraction ◽  
Loteprednol Etabonate ◽  
Carbon Paste Electrodes ◽  
Transmission Electron ◽  
Nernstian Slope ◽  
Nitrogen Doped Carbon ◽  
Modified Carbon Paste Electrodes

Two inexpensive and simple methods for synthesis of carbon nanodots were applied and compared to each other, namely a hydrothermal and microwave-assisted method. The synthesized carbon nanodots were characterized using transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis), photoluminescence (PL), Fourier transform-infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The synthesized microwave carbon nanodots had smaller particle size and were thus chosen for better electrochemical performance. Therefore, they were used for our modification process. The proposed electrodes performance characteristics were evaluated according to the IUPAC guidelines, showing linear response in the concentration range 10−6–10−2, 10−7–10−2, and 10−8–10−2 M of tobramycin with a Nernstian slope of 52.60, 58.34, and 57.32 mV/decade for the bare, silver nanoparticle and carbon nanodots modified carbon paste electrodes, respectively. This developed potentiometric method was used for quantification of tobramycin in its co-formulated dosage form and spiked human plasma with good recovery percentages and without interference of the co-formulated drug loteprednol etabonate and excipients.

Ferrocene-substituted calix[4]pyrrole modified carbon paste electrodes for anion detection in water

2006 ◽  
Vol 591 (2) ◽  
pp. 223-228 ◽  
Author(s):  
Iwona Szymańska ◽  
Hanna Radecka ◽  
Jerzy Radecki ◽  
Philip A. Gale ◽  
Colin N. Warriner
Keyword(s):  
Carbon Paste ◽  
Anion Detection ◽  
Carbon Paste Electrodes ◽  
Modified Carbon Paste Electrodes

Comparison of two kinetic approaches for copper speciation using ion-exchange columns and ion-exchange modified carbon paste electrodes

1999 ◽  
Vol 382 (1-2) ◽  
pp. 179-188 ◽  
Author(s):  
M.Mar Ortiz Viana ◽  
M.Pilar da Silva ◽  
Raquel Agraz ◽  
Jesús R. Procopio ◽  
M.Teresa Sevilla ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Carbon Paste ◽  
Carbon Paste Electrodes ◽  
Copper Speciation ◽  
Modified Carbon Paste Electrodes

scholarly journals NADH Electrooxidation Using Bis(1,10-phenanthroline-5,6-dione)(2,2′-bipyridine)ruthenium(II)-Exchanged Zirconium Phosphate Modified Carbon Paste Electrodes

2006 ◽  
Vol 18 (6) ◽  
pp. 559-572 ◽  
Author(s):  
Mitk'El B. Santiago ◽  
Meredith M. Vélez ◽  
Solmarie Borrero ◽  
Agustín Díaz ◽  
Craig A. Casillas ◽  
...  
Keyword(s):  
Zirconium Phosphate ◽  
Carbon Paste ◽  
Carbon Paste Electrodes ◽  
Modified Carbon Paste Electrodes
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