Long-chain N-nitroso-N-methylalkylamines in commercial cosmetics, light-duty dishwashing liquids and household cleaning preparations.
A method for the determination of long-chain N-nitroso-N-methylalkylamines in a range of commercial cosmetic and cleaning emulsions is described. The clean-up consists of solid-phase extraction and column chromatography. N-Nitroso-N-methyldodecylamine, N-nitroso-N-methyltetradecylamine and N-nitroso-N-methylhexadecylamine are detected by gas-liquid chromatography using a Thermal Energy Analyzer. N-Nitroso-N-ethyldodecylamine is used as an internal standard. Analysis of 86 products produced and marketed in the FRG did not indicate significant contamination. In contrast, of 26 consumer products from the USA, three (one hair-care product and two dishwashing liquids), which contained fatty amine oxides, were contaminated with substantial amounts of N-nitroso-N-methylalkylamines.
Kamp
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Lebensmittelchemie und Umwelttoxikologie, Fachbereich Chemie, Universität Kaiserslautern, Kaiserslautern, Germany.
Eisenbrand
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G
D002849:Chromatography, Gas; D003358:Cosmetics / Q000032:analysis*; D003902:Detergents / Q000032:analysis*; D005858:Germany; D006795:Household Products / Q000032:analysis*; D009603:Nitroso Compounds / Q000032:analysis*
D003358:Cosmetics; D003902:Detergents; D009603:Nitroso Compounds