scholarly journals Integrated all-solid-state sulfite sensors modified with two different ion-to-electron transducers: rapid assessment of sulfite in beverages

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3783-3791
Author(s):  
Hisham S. M. Abd-Rabboh ◽  
Abd El-Galil E. Amr ◽  
Ayman H. Kamel ◽  
Mohamed A. Al-Omar ◽  
Ahmed Y. A. Sayed
Keyword(s):  
Solid State ◽  
Rapid Assessment ◽  
Potentiometric Sensor ◽  
Sulfite Ion ◽  
Screen Printed

An integrated all-solid-state screen-printed ion-selective potentiometric sensor for rapid assessment of sulfite ion in beverages, based on analytical transduction, is described.

Portable solid-state potentiometric sensor based on polymeric ion-exchanger for the assay of the controversial food colorant (sunset yellow)

2021 ◽  
Author(s):  
Manar Omar Heragy ◽  
Azza Mustafa ◽  
Eman Elzanfaly ◽  
Ahmed Sayed Saad
Keyword(s):  
Solid State ◽  
Food Additives ◽  
Daily Intake ◽  
Food Products ◽  
Potentiometric Sensor ◽  
Ion Exchanger ◽  
Sunset Yellow ◽  
Food Colorant

Food additives are chemicals added to enhance appearance, taste, or lifetime of food products. Authorities continuously update lists of the allowed additives and their daily intake limits. Thus, authorities and...

New solvent system for the improved electrochemical performance of screen-printed polyurethane membrane-based solid-state sensors

1996 ◽  
Vol 33 (1-3) ◽  
pp. 168-172 ◽  
Author(s):  
R.W. Hower ◽  
J.H. Shin ◽  
G.S. Cha ◽  
R.K. Meruva ◽  
M.E. Meyerhoff ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochemical Performance ◽  
Solvent System ◽  
Polyurethane Membrane ◽  
Screen Printed

Screen Printed Solid State Contact Biosensors for the Determination of Urea in Undiluted Biological Samples

1994 ◽  
pp. 142
Author(s):  
Bemhard P.H Schaffar ◽  
Andreas M. Dolezal ◽  
Wolfgang P. Kienberger ◽  
Helmut Offenbacher ◽  
Josef Riegebauer ◽  
...  
Keyword(s):  
Solid State ◽  
Biological Samples ◽  
Screen Printed

Computational optimization of a novel solid-state sensor for stable assay of isoxsuprine hydrochloride in the presence of its nephrotoxic/hepatotoxic photothermal degradation products: application in different sampling matrices

2020 ◽  
Vol 44 (35) ◽  
pp. 15260-15269
Author(s):  
Khadiga M. Kelani ◽  
Eman S. Elzanfaly ◽  
Michael K. Halim ◽  
Ahmed S. Saad
Keyword(s):  
Solid State ◽  
Degradation Products ◽  
Potentiometric Sensor ◽  
Complex Matrices ◽  
Computational Optimization ◽  
Solid State Sensor

The DOE optimization of a solid-state potentiometric sensor for isoxsuprine assay in the presence of its photothermal degradation products within complex matrices.

scholarly journals Single-Piece All-Solid-State Potential Ion-Selective Electrodes Integrated with Molecularly Imprinted Polymers (MIPs) for Neutral 2,4-Dichlorophenol Assessment

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2924 ◽  
Author(s):  
Samar Ezzat ◽  
Mona A. Ahmed ◽  
Abd El-Galil E. Amr ◽  
Mohamed A. Al-Omar ◽  
Ayman H. Kamel ◽  
...  
Keyword(s):  
Solid State ◽  
High Sensitivity ◽  
Hplc Method ◽  
Constant Current ◽  
Carbon Substrate ◽  
Buffer Solution ◽  
Screen Printed Carbon Electrode ◽  
Single Piece ◽  
State Potential ◽  
Screen Printed

A novel single-piece all-solid-state ion-selective electrode (SC/ISE) based on carbon-screen printed is introduced. Polyaniline (PANI) is dissolved in a membrane cocktail that contains the same components used for making a conventional ion-selective polyvinyl chloride (PVC) matrix membrane. The membrane, having the PANI, is directly drop-casted on a carbon substrate (screen-printed-carbon electrode). PANI was added to act as an intermediary between the substrate and the membrane for the charge transfer process. Under non-equilibrium sensing mechanism, the sensors revealed high sensitivity towards 2,4-dichlorophenol (DCP) over the linearity range 0.47 to 13 µM and a detection limit 0.13 µm. The selectivity was measured by the modified separate solution method (MSSM) and showed good selectivity towards 2,4-DCP over the most commonly studied ions. All measurements were done in 30 mm Tris buffer solution at a pH 5.0. Using constant-current chronopotentiometry, the potential drift for the proposed electrodes was checked. Improvement in the potential stability of the SPE was observed after the addition of PANI in the sensing membrane as compared to the corresponding coated-wire electrode (membrane without PANI). The applicability of the sensor has been checked by measuring 2,4-DCP in different water samples and the results were compared with the standard HPLC method.

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