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Quantification of Mineral Oil Aromatic Hydrocarbons (MOAH) in Anhydrous Cosmetics Using 1 H NMR

Weber, Sandra; Schmidt, Tamina; Schumacher, Paul; Kuballa, Thomas; Mildau, Gerd; Walch, Stephan G.; Hartwig, Andrea; Lachenmeier, Dirk W.

In cosmetic products, hydrocarbons from mineral oil origin are used as ingredients in a wide variety of consistency, from liquid oil to solid wax. Refined mineral oil hydrocarbons consist of MOSH (mineral oil saturated hydrocarbons) and a low proportion of MOAH (mineral oil aromatic hydrocarbons). MOSH and MOAH comprise a variety of chemically similar single substances with straight or branched chains. In the context of precautionary consumer protection, it is crucial to determine hydrocarbons from mineral oil origin of inferior quality quickly and efficiently. This publication presents a rapid method for quantifying MOAH by proton nuclear magnetic resonance spectroscopy (¹H qNMR) in anhydrous cosmetics such as lipstick, lip gloss, and lip balm. A sample clean-up using solid-phase extraction (SPE) was developed for the complete removal of interfering aromatic substances to improve the robustness of the method for analysing compounded cosmetics. In preliminary trials using silica gel thin-layer chromatography, the retention behaviour of 21 common aromatic compounds was tested in eluents with different solvent strength including EtOAc, MeOH, cyclohexane, and dichloromethane. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000104566
Veröffentlicht am 07.01.2020
DOI: 10.1155/2019/1680269
Zitationen: 2
Web of Science
Zitationen: 2
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Biowissenschaften (IAB)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2019
Sprache Englisch
Identifikator ISSN: 2090-9063, 2090-9071
KITopen-ID: 1000104566
Erschienen in Journal of chemistry
Verlag Hindawi
Band 2019
Seiten Art. Nr.: 1680269
Nachgewiesen in Dimensions
Web of Science
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