Author: Carlos Carneiro

0000000000676399

AUTHOR

Carlos Carneiro

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Caffeine analysis and extraction from a topical cream intended for UV-skin protection

2020

Made available in DSpace on 2021-06-25T10:16:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 This study aimed to develop and validate a method for the analysis of caffeine in complex cosmetic samples, such as sunscreens. Besides, an extraction method of caffeine from coffee oil and from creams, which contains both lipophilic and hydrophilic components, has been developed. The method to analyze caffeine was developed using an isocratic pump, Waters 1515 and an automatic injector Perkin-Elmer Series 200 and an UV detector Perkin-Elmer. As stationary phase, Kromasil C-18 (150 × 4.6 mm ID with particle size of 5 µm) column was used and a mixture of water (pH 4.00)/acetonitrile (…

emulsionSkin protectionSunscreensChromatographyPolymers and PlasticsExtraction (chemistry)02 engineering and technology021001 nanoscience & nanotechnologySurfaces Coatings and Filmschemistry.chemical_compoundTopical cream020401 chemical engineeringchemistrychemical analysisEmulsionextractionExtraction methods0204 chemical engineeringPhysical and Theoretical Chemistry0210 nano-technologyCaffeinecaffeineJournal of Dispersion Science and Technology

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