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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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