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Title: Quantitative analysis of demeclocycline by high-performance liquid chromatography
Authors: Weng, N ×
Roets, Eugene
Hoogmartens, Jos #
Issue Date: Jan-1989
Series Title: Journal of pharmaceutical and biomedical analysis vol:7 issue:12 pages:1691-703
Abstract: A high-performance liquid chromatographic (HPLC) method suitable for the quality control of demeclocycline is described. The stationary phase is a poly(styrene-divinylbenzene) copolymer, kept at 60 degrees C. The mobile phase comprises 2-methyl-2-propanol-0.2 M potassium phosphate buffer (pH 9.0)-0.02 M tetrabutylammonium hydrogen sulphate (pH 9.0)-0.01 M sodium edetate (pH 9.0)-water (8:10:15:10:57, m/v/v/v/v). The flow rate is 1 ml min-1 and detection is performed at 254 nm. Official standards are compared and results for the analysis of a number of commercial bulk samples and preparations are presented. 4-Epidemeclocycline and demethyltetracycline are the main impurities. 4-Epidemethyltetracycline and 2-acetyl-2-decarboxamido-demeclocycline can also be present.
ISSN: 0731-7085
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Pharmaceutical Analysis
× corresponding author
# (joint) last author

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