EPR and electrochemical quantification of oxygen using newly synthesized para-silylated triarylmethyl radicals.
FREE RADICAL RESEARCH（2015）
Abstract
Novel silylated triarylmethyl (TAM) radicals based on TAM core CT-03 and their electron paramagnetic resonance (EPR) spectra are evaluated as a function of oxygen concentration. Combination of peak-to-peak linewidth of the EPR signal and electrochemical determination allows designing a method for oxygen quantification in phosphate buffer, dimethylsulfoxide, and dichloromethane, which can be extended to other solvents.
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Key words
oximetry,silylated trityls,electron paramagnetic resonance,electrochemistry,ultramicroelectrode
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