Patent ID: 9182367
Filing Date: 2015-11-10
Classification: G01N

Abstract:
1. An electroanalytical method for determination of phenols, comprising the steps of: contacting an aqueous sample of a phenolic compound with an electrode assembly having a working electrode; determining a response of the working electrode in a voltammogram by varying a potential applied to the working electrode, wherein the potential applied to the working electrode is an accumulation potential during a square-wave adsorptive stripping voltammetry measurement, the square-wave adsorptive stripping voltammetry measurement being conductive at a pulse amplitude of 25 mV with a pulse width of 8 mV and at a frequency of 15 Hz; measuring the size of peaks in the voltammogram corresponding to a redox-active polyphenol film that develops at the working electrode at an electro-polymerization potential of the phenolic compound in order to determine the concentration of the phenolic compound.