Scanning Electrochemical Microscope-Induced Dissolution:  Theory and Experiment for Silver Chloride Dissolution Kinetics in Aqueous Solution without Supporting Electrolyte

1996 ◽  
Vol 100 (50) ◽  
pp. 19475-19483 ◽  
Author(s):  
Julie V. Macpherson ◽  
Patrick R. Unwin
Keyword(s):  
Aqueous Solution ◽  
Silver Chloride ◽  
Supporting Electrolyte ◽  
Dissolution Kinetics ◽  
Scanning Electrochemical Microscope ◽  
Theory And Experiment

A Novel Method to Fabricate Silver Chloride Films

2011 ◽  
Vol 117-119 ◽  
pp. 652-655
Author(s):  
Hui Chung Hsueh ◽  
Zue Chin Chang ◽  
Chang Ching You ◽  
C. B. Lin
Keyword(s):  
Aqueous Solution ◽  
Sodium Chloride ◽  
Cross Section ◽  
Silver Chloride ◽  
Bottom Surface ◽  
Heterogeneous Precipitation ◽  
Columnar Grains ◽  
Novel Method ◽  
Equiaxed Grains ◽  
Chloride Film

Abstract: This investigation develops a novel method for fabricating silver chloride films by the heterogeneous precipitation of sodium chloride from aqueous solution and supersaturated solid-state silver nitrate out of aqueous solution. The morphology of the bottom surface of the silver chloride film thus obtained comprises numerous porous stick structures. The top surface comprises equiaxed grains, and columnar grains are observed in the cross-section.

RETRACTED: Determination of the electrode potentials for substituted 1,2-dihydroxybenzenes in aqueous solution: Theory and experiment

2006 ◽  
Vol 774 (1-3) ◽  
pp. 107-111 ◽  
Author(s):  
Siavash Riahi ◽  
Mohamad Reza Ganjali ◽  
Abdolmajid Bayandori Moghaddam ◽  
Parviz Norouzi ◽  
Marjan Niasari
Keyword(s):  
Aqueous Solution ◽  
Solution Theory ◽  
Electrode Potentials ◽  
Theory And Experiment

scholarly journals Voltammetric Determination of LSD with a Schiff Base – Chemically Modified Electrode in Aqueous Solution

2020 ◽  
Vol 9 (4) ◽  
pp. 440-458
Author(s):  
Maria Fernanda M. Ribeiro ◽  
Erica N. Oiye ◽  
Juliana M. T. Katayama ◽  
José W. C. Junior ◽  
Edward R. Dockal ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Forensic Science ◽  
Carbon Paste Electrode ◽  
Supporting Electrolyte ◽  
Modified Electrodes ◽  
Schiff Base Complexes ◽  
Carbon Paste ◽  
Simple Modification ◽  
Paste Electrode

In recent years, practical, inexpensive, and highly specific electroanalytical methods based on modified electrodes have been increasingly developed for forensic science. Simple modification of the carbon paste electrode with Schiff base complexes has become a promising strategy to detect and quantify narcotics. In this context, we aimed to develop voltammetric methods to quantify lysergic acid diethylamide (LSD) by using a carbon paste electrode modified with the complex [UO2(Ac-ophen)]·H2O. The use of an aqueous solution of KCl as supporting electrolyte makes the methodology less polluting, which contrasts with methods that still employ toxic solvents. The developed method for Differential Pulse Voltammetry provides a linear response at various concentrations of LSD and affords analytical curves with standard deviation, detection, and quantification limits around 2.45, 0.625, and 2.08 μmol L-1, respectively. The recovery values of 103 and 108% prove that the developed method is suitable for application in forensic science.

scholarly journals The interactions between lipase and pyridinium ligands investigated by electrochemical and spectrophotometric methods

2016 ◽  
Vol 6 (1) ◽  
pp. 91
Author(s):  
Simona Patriche ◽  
Elena Georgiana Lupu ◽  
Andreea Cârâc ◽  
Rodica Mihaela Dinică ◽  
Geta Cârâc
Keyword(s):  
Aqueous Solution ◽  
Essential Role ◽  
Supporting Electrolyte ◽  
Exchange Process ◽  
Carbon Electrode ◽  
Ionic Exchange ◽  
Spectrophotometric Methods ◽  
Lipase Enzyme ◽  
Vis Spectroscopy ◽  
The Stability

<p class="PaperAbstract"><span lang="EN-GB">The interaction between pyridinium ligands derived from 4,4’-bipyridine (N,N’-bis(p-bromophenacyl)-4,4’-bipyridinium dibromide – Lr) and (N,N’-bis(p-bromophenacyl)-1,2-bis (4-pyridyl) ethane dibromide – Lm) with lipase enzyme was evaluated. The stability of the pyridinium ligands, having an essential role in biological systems, in 0.1 M KNO<sub>3</sub> as supporting electrolyte is influenced by the lipase concentration added. The pH and conductometry measurements in aqueous solution suggest a rapid ionic exchange process. The behavior of pyridinium ligands in the presence of lipase is investigated by cyclic voltammetry and UV/Vis spectroscopy, which indicated bindings and changes from the interaction between them. The voltammograms recorded on the glassy carbon electrode showed a more intense electronic transfer for the Lr interaction with lipase compared to Lm, which is due to the absence of mobile ethylene groups from Lr structure.</span></p>

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