SIMULTANEOUS DENSITOMETRIC DETERMINATION OF BETAMETHASONE VALERATE AND MICONAZOLE NITRATE IN CREAM, AND ITS VALIDATION
作者:
Gunawan Indrayanto,
Sonja Widjaja,
Sesylia Sutiono,
期刊:
Journal of Liquid Chromatography & Related Technologies
(Taylor Available online 1999)
卷期:
Volume 22,
issue 1
页码: 143-152
ISSN:1082-6076
年代: 1999
DOI:10.1081/JLC-100101650
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A simple and rapid densitometric method has been developed for simultaneous determination of betamethasone valerate and miconazole nitrate in cream preparations. After extraction of the analyte with 96 % ethanol, the extracts were spotted on pre–coated silica gel plates, which were eluted two times with a mixture of chloroform–acetone–glacial acetic acid, 34+4+3 (v/v/v). Quantitative evaluation was performed by measuring the absorbance reflectance of the analyte spots at λ = 233 nm. The densitometric method is selective, precise, and accurate, and can be used for routine analysis of the cream preparations in pharmaceutical industry quality control laboratories.
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