Assay of Volatile Acids Induced by Autoxidation of Nonionic Surfactants by Liquid Chromatography with Direct Denvatization
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説明
<jats:title>Abstract</jats:title> <jats:p>Direction derivatization in conjunction with liquid chromatography is described for assay of volatileacids induced by autoxidation of nonionic surfactants. The method is based on the reaction of acids with 2-nitrophenylhydrazine hydrochloride to produce nonvolatile hydrazine derivatives, which are separatedisocratically on a YMC-FA (C8) column within 10 min. In this study, formic acid was produced copiously in autoxidations, principally from C-C fission of hydroperoxides or free radicals. The method is superior with regard to stoichiometric measurement of acid formation, which is related to the extent of oxidation of nonionic surfactants.</jats:p>
収録刊行物
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- Journal of AOAC INTERNATIONAL
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Journal of AOAC INTERNATIONAL 79 418-422, 1996-03-01
Oxford University Press (OUP)