Characteristic Features of Female Pattern Hair Loss and the Improvement by Adenosine

Autor:	Ritsuko Ehama, Tokuro Iwabuchi, Masato Iino, Yosuke Nakazawa, Ritsuro Ideta, Yoshiharu Tsuji, Hajimu Oura, Seiji Arase, Jiro Kishimoto
Rok vydání:	2011
Předmět:	chemistry.chemical_compound Prima materia Chromatography Supercritical carbon dioxide chemistry medicine.medical_treatment Carbon dioxide Extraction (chemistry) Supercritical fluid extraction Deodorant medicine High-performance liquid chromatography Triclosan
Zdroj:	Journal of Society of Cosmetic Chemists of Japan. 45:35-40
ISSN:	1884-4146 0387-5253
DOI:	10.5107/sccj.45.35
Popis:	A rapid and efficient procedure was developed for the isolation of the bacteriostat triclosan from deodorant stick and soap matrices using supercritical fluid extraction (SFE). Quantitative recovery for triclosan was obtained with two sequential 7.5-min extraction steps using supercritical carbon dioxide at a density of 0.85 g/ml and at a temperature of 4O°C for stick preparations or 50°C for soap products. The SFE method was compared with conventional liquid extraction and was found to achieve improved recovery and specificity within a shorter time span. The automated extraction by SFE minimized sample handling, affording enhanced precision. Moreover, SFE reduced the use of hazardous solvents. Triclosan was assayed in commercial deodorant products by high-performance liquid chromatography after extraction with supercritical carbon dioxide according to the described procedure
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::23c5bd66871f7e705c1f4063f3d31292 https://doi.org/10.5107/sccj.45.35 Zobrazit plný text záznamu