Determination of Organic Peroxides
The major chemical pathway for the degradation of hydrocarbons is their photochemical oxidation by hydroxy radicals. The products vary depending on the concentration of nitrogen oxides. At low NOx-levels, the production of organic hydroperoxides is favoured. Until now the determination of these compounds was limited to analysis of the total amount of peroxide and the analysis of hydrogen peroxide. This paper describes a method to separate and determine organic peroxides by means of HPLC and post-column reaction detection. Depending on the kind of peroxide, detection limits of 100ppb or 10pmol have been reached until now. Since hydrogen peroxide elutes within the dead-volume, it does not interfere with the detection of the other peroxides.
KeywordsOrganic Peroxide High Performance Liquid Chroma Organic Hydroperoxide Alkyl Hydroperoxide Guanidinium Chloride
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