Sensitive determination of alkyl hydroperoxides by high-resolution gas chromatography-mass spectrometry and high-resolution gas chromatography with flame ionization detection

Abstract

A method for the determination of alkyl-hydroperoxides by high-resolution GC was developed. Alkyl hydroperoxides were synthesized in the gaseous phase and identified in the chromatograms of the reaction mixture using a GC-MS system. Electron impact mass spectra of C 1-C 6 alkyl hydroperoxides were recorded. The hydroperoxides were determined using flame ionization detection (FID). FID response factors of these compounds were calculated using the concept of the effective carbon number. Detection limits of the hydroperoxides ranged from 91 to 127 pg absolute. The system is also useful for the qualitative identification of labile hydroperoxides as, e.g., 1,2-dichloroethyl hydroperoxide.