Accueil
Résultat de la recherche
1 résultat(s) recherche sur le tag 'panthénol'
Ajouter le résultat dans votre panier Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche
Determination of panthenol, cholecalciferol and tocopherol in cosmetic products by gas chromatography-mass spectrometry in SIM mode / H.-J. Jeong in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 21, N° 1 (02/1999)
[article]
Titre : Determination of panthenol, cholecalciferol and tocopherol in cosmetic products by gas chromatography-mass spectrometry in SIM mode Type de document : texte imprimé Auteurs : H.-J. Jeong, Auteur ; M. H. Lee, Auteur ; C.-W. Hur, Auteur ; J.-W. Kim, Auteur Année de publication : 1999 Article en page(s) : p. 41–50 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Panthénol Cholécalciférol Tocophérol 'Chromatographie en phase gazeuse' 'Spectrométrie de masse' 'Mode SIM' Silylation Index. décimale : 668.5 Parfums et cosmétiques Résumé : A novel simple method to detect vitamins in cosmetic products by gas chromatography-mass spectrometry (GC-MS) has been developed. Three vitamins (panthenol, cholecalciferol and tocopherol) were used for this study. Vitamins were prepared by dissolving in tetrahydrofuran (ThF), and silylated with bis-trimethylsilyltri-fluoroacetamide- trichloromethylsilane (BSTFA). Silylated vitamins were separated on a fused-silica capillary column coated with DB-5. The identification of each vitamin was accomplished by retention time and mass spectrum library search with a computer, and the quantitation was made in the selected-ion monitoring (SIM) mode of GC-MS. SIM mode had given sensitivity to determine 50 pg of panthenol, 285 pg of cholecalciferol and 130 pg of tocopherol. Linearity was maintained over the range 0.005–0.20% for each vitamin. Each cosmetic product (i.e. hair tonic and lotion) was found to contain amounts of the vitamins. This method was sensitive and gave 77.5–99.9% recovery of each vitamin from these cosmetic products. From these results, we concluded that silylation with BSTFA followed by GC-MS analysis allows the simple, convenient and exact determination of panthenol, cholecalciferol and tocopherol. DOI : 10.1046/j.1467-2494.1999.181685.x En ligne : https://onlinelibrary.wiley.com/doi/10.1046/j.1467-2494.1999.181685.x Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26503
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 21, N° 1 (02/1999) . - p. 41–50[article]