EPR and electrochemical quantification of oxygen using newly synthesized para-silylated triarylmethyl radicals. (March 2015)

• Record Type: Journal Article
• Authors: Boutier-Pischon, A.; Auger, F.; Noël, J.-M.; Almario, A.; Frapart, Y.-M.
• Is Part Of: Free radical research. Volume 49:Number 3(2015:Mar.)
• Page Start: 236
• Page End: 243
• Publication Date: 2015-03
• Subjects: oximetry -- silylated trityls -- electron paramagnetic resonance -- electrochemistry -- ultramicroelectrode; Free radicals (Chemistry) -- Periodicals; Antioxidants -- Periodicals; Vitamin C -- Periodicals; Vitamin E -- Periodicals; 541.224
• DOI: 10.3109/10715762.2014.995183
• Languages: English
• ISSNs: 1071-5762

Abstract

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.