Abstract: A flow cell and a method for batch and continuous simultaneous electrochemical (EC) and electron paramagnetic resonance (EPR) measurements. The flow cell includes first and second tubes with hollow interiors and the first tube is removably connected to first and second tube assemblies. The interior of the second tube contains first ends of first and second electrodes and a solution comprising an analyte. When a voltage is applied to the second electrode, the analyte undergoes a reduction or an oxidation process to generate radicals, which in turn, give rise to EPR signals.

Abstract: A flow cell and a method for batch and continuous simultaneous electrochemical (EC) and electron paramagnetic resonance (EPR) measurements. The flow cell includes first and second tubes with hollow interiors and the first tube is removably connected to first and second tube assemblies. The interior of the second tube contains first ends of first and second electrodes and a solution comprising an analyte. When a voltage is applied to the second electrode, the analyte undergoes a reduction or an oxidation process to generate radicals, which in turn, give rise to EPR signals.

Abstract: A cell and method for simultaneous electrochemical and EPR measurements, including a disposable assembly, allows for a single device to produce data for both electroanalysis and EPR spectroscopy by generating a Redox reaction to form free radicals. The cell includes first and second hollow tubes, with the second tube being removably insertable into the first hollow tube. The interior of the first tube contains an insulating material, an electro-conductive material, and a wire connector extending from the electro-conductive material and out the first tube. The interior of the second tube contains an electrolytic solution, an analyte, a working electrode, and insulating material surrounding the working electrode. The second tube is inserted into the first tube and a reference electrode is placed into the second tube. The cell is placed within an EPR spectrometer. A potential is applied to the reference electrode to generate the Redox reaction of the analyte.

Abstract: The electroanalytical method for determination of phenols is a method for determining the concentration of phenolic compounds and their chloro-derivatives, on the surface of a glassy carbon electrode (GCE) by cyclic voltammetry (CV) and/or square-wave stripping voltammetry (SWASV) using a redox active polymer film that is formed on the surface of the GCE when the electro-polymerization potential is reached. The electroanalytical method comprises contacting an aqueous sample containing a phenolic compound(s) with an electrode assembly having a working electrode; generating a voltammogram of the analyte by varying an applied accumulation potential or applied potential, and measuring the size of voltammogram peaks corresponding to a redox-active polymeric film that develops at the working electrode at the electro-polymerization potential in order to determine the concentration of the phenolic compound.

Abstract: The electroanalytical method for determination of phenols is a method for determining the concentration of phenolic compounds and their chloro-derivatives, on the surface of a glassy carbon electrode (GCE) by cyclic voltammetry (CV) and/or square-wave stripping voltammetry (SWASV) using a redox active polymer film that is formed on the surface of the GCE when the electro-polymerization potential is reached. The electroanalytical method comprises contacting an aqueous sample containing a phenolic compound(s) with an electrode assembly having a working electrode; generating a voltammogram of the analyte by varying an applied accumulation potential or applied potential, and measuring the size of voltammogram peaks corresponding to a redox-active polymeric film that develops at the working electrode at the electro-polymerization potential in order to determine the concentration of the phenolic compound.

Abstract: A cell and method for simultaneous electrochemical and EPR measurements, including a disposable assembly, allows for a single device to produce data for both electroanalysis and EPR spectroscopy by generating a Redox reaction to form free radicals. The cell includes first and second hollow tubes, with the second tube being removably insertable into the first hollow tube. The interior of the first tube contains an insulating material, an electro-conductive material, and a wire connector extending from the electro-conductive material and out the first tube. The interior of the second tube contains an electrolytic solution, an analyte, a working electrode, and insulating material surrounding the working electrode. The second tube is inserted into the first tube and a reference electrode is placed into the second tube. The cell is placed within an EPR spectrometer. A potential is applied to the reference electrode to generate the Redox reaction of the analyte.