In situ bismuth film modified screen printed electrodes for the bio-monitoring of cadmium in oral (saliva) fluid

2010 ◽  
Vol 2 (6) ◽  
pp. 645 ◽  
Author(s):  
Mohamed Khairy ◽  
Rashid O. Kadara ◽  
Dimitrios K. Kampouris ◽  
Craig E. Banks
Keyword(s):  
Bismuth Film ◽  
Screen Printed Electrodes ◽  
Bio Monitoring ◽  
Screen Printed

A Novel in Situ Electrochemical Strategy for Gatifloxacin Microdetermination in Urine Using Solid Contact and Disposal Screen-Printed Electrodes: a Comparative Study

2021 ◽  
Vol 76 (2) ◽  
pp. 243-251
Author(s):  
Mohamed K. Abd El-Rahman ◽  
Rania A. Sayed ◽  
Manal S. El-Masry ◽  
Wafaa S. Hassan ◽  
Abdalla Shalaby
Keyword(s):  
Comparative Study ◽  
Solid Contact ◽  
Screen Printed Electrodes ◽  
Screen Printed

scholarly journals Screen-Printed Electrodes Modified with Metal Phthalocyanines: Characterization and Electrocatalysis in Chlorinated Media

Sensors ◽  
2020 ◽  
Vol 20 (13) ◽  
pp. 3702
Author(s):  
Daniel Antuña-Jiménez ◽  
David Ibáñez ◽  
María Begoña González-García ◽  
David Hernández-Santos ◽  
Pablo Fanjul-Bolado
Keyword(s):  
Proof Of Concept ◽  
Metal Phthalocyanine ◽  
Detailed Characterization ◽  
Metal Phthalocyanines ◽  
Screen Printed Electrodes ◽  
Aqueous Salt Solutions ◽  
Vibrational Bands ◽  
Scientific Fields ◽  
Screen Printed

Metal phthalocyanines are well-known sensing phases with applications in different scientific fields due to their interesting properties. Detailed characterization by Raman spectroscopy was performed in order to study the shifting of the vibrational bands related to the coordination sphere of each metal phthalocyanine. In this work, a study involving the use of screen-printed electrodes (SPEs) with various metal phthalocyanines to electrochemically detect and quantify chlorine (Cl2) gas is presented. The Cl2 gas was generated in-situ via oxidation of the chloride present in form of aqueous salt solutions. The developed method offers not only the possibility to quantify chlorine, but also to discriminate among several chlorinated species due to the changes observed in the voltammetric profiles associated with the interaction between the specie assayed and the phthalocyanine metallic center. Optimization of detecting parameters was also performed to apply this procedure for the quantification of chlorine generated from commercial chlorine tablets. The development of this proof of concept shows interesting possibilities and easy-to-use applications with novel on metal phthalocyanines based SPE sensors.

scholarly journals Exploiting Laser-Ablation ICP-MS for the Characterization of Salt-Derived Bismuth Films on Screen-Printed Electrodes: A Preliminary Investigation

Biosensors ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 119
Author(s):  
Carlo Dossi ◽  
Gilberto Binda ◽  
Damiano Monticelli ◽  
Andrea Pozzi ◽  
Sandro Recchia ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Preliminary Investigation ◽  
High Vacuum ◽  
Bismuth Film ◽  
Reductive Activation ◽  
Screen Printed Electrodes ◽  
Working Electrode ◽  
Icp Ms ◽  
Screen Printed

The use of insoluble bismuth salts, typically BiPO4, is known to be a viable alternative to classical Bi3+ ion electrochemical reduction for the preparation of bismuth film electrodes (BiFE) on screen-printed electrodes. The freshly prepared electrodes are indefinitely stable, and the active bismuth film is simply formed by in situ reduction. Two aspects are still to be investigated, namely the bismuth distribution on the working electrode and the possible residual presence of the counteranion, namely phosphate. High-vacuum techniques such as electron microscopy or spectroscopy, which are commonly employed for this purpose, cannot be safely used: the bismuth surface is well-known to reconstruct and recrystallize under the electron beam in vacuum. Here, we demonstrate the suitability and the effectiveness of laser ablation ICP-MS (LA-ICP-MS, a technique that vaporizes and analyzes the surface material under flowing helium at atmospheric pressure) for the characterization of BiFE. Fast and stable measurements of bismuth and phosphorous distribution are achieved with the advantage of a minimum alteration of the sample surface, avoiding possible interferences. This investigation evidenced how, upon reductive activation, the bismuth film is distributed with a radial symmetry and the phosphate counteranion is completely absent on the working electrode surface.

Fabrication of a bismuth nanoparticle/Nafion modified screen-printed graphene electrode for in situ environmental monitoring

2019 ◽  
Vol 11 (12) ◽  
pp. 1591-1603 ◽  
Author(s):  
Shirley Palisoc ◽  
Vince Aaron Sow ◽  
Michelle Natividad
Keyword(s):  
Environmental Monitoring ◽  
Screen Printing ◽  
Graphene Electrode ◽  
Screen Printed Electrodes ◽  
Screen Printed

Bismuth nanoparticle (BiNP)/Nafion modified screen-printed electrodes were fabricated through screen printing and drop coating.

In situ electrochemical detection of trace metal vapors at bismuth doped carbon screen printed electrodes

2010 ◽  
Vol 642 (2) ◽  
pp. 157-159 ◽  
Author(s):  
Donglai Lu ◽  
Jeff La Belle ◽  
Celine Le Ninivin ◽  
Stephane Mabic ◽  
Telis Dimitrakopoulos
Keyword(s):  
Trace Metal ◽  
Electrochemical Detection ◽  
Screen Printed Electrodes ◽  
Metal Vapors ◽  
Screen Printed

scholarly journals In situ electrochemical determination of free Cu(II) ions in biodiesel using screen-printed electrodes: Direct correlation with oxidation stability

Fuel ◽  
2018 ◽  
Vol 234 ◽  
pp. 1452-1458 ◽  
Author(s):  
André L. Squissato ◽  
Thais S. Neri ◽  
Nívia M.M. Coelho ◽  
Eduardo M. Richter ◽  
Rodrigo A.A. Munoz
Keyword(s):  
Oxidation Stability ◽  
Electrochemical Determination ◽  
Screen Printed Electrodes ◽  
Screen Printed
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