High-Performance Liquid Chromatographic Determination of Dihydroergocristine in a Pharmaceutical Formulation with Fluorescence Detection
Authors: Doua, Michal; Dubovsk, Michaela
Source: Journal of AOAC International, Volume 93, Number 1, January 2010 , pp. 97-101(5)
Publisher: AOAC International
Abstract:A rapid procedure based on a direct extraction and HPLC determination of dihydroergocristine in a pharmaceutical preparation with fluorescence detection has been developed and validated. The optimized chromatographic conditions included a Purospher RP18e column, 5 m particle size, 250 4.0 mm, and 25 mM potassium dihydrogen phosphate buffer (pH 2.8)acetonitrile (60 + 40, v/v) mobile phase at a flow rate of 1 mL/min. The separation was carried out at 50C, and the injection volume was 5 L. Fluorescence detection was performed at an excitation and emission wavelength of 224 and 344 nm, respectively. The mobile phase parameters such as organic solvent composition, temperature, and pH were studied. The proposed method has the advantages of a very simple sample pretreatment and fast HPLC determination.
Document Type: Research Article
Affiliations: Zentiva, a.s. Praha, U Kabelovny 130, 102 37 Praha 10, Czech Republic.
Publication date: January 1, 2010
- The Journal of AOAC INTERNATIONAL publishes refereed papers and reviews in the fields of chemical, biological and toxicological analytical chemistry for the purpose of showcasing the most precise, accurate and sensitive methods for analysis of foods, food additives, supplements and contaminants, cosmetics, drugs, toxins, hazardous substances, pesticides, feeds, fertilizers and the environment available at that point in time. The scope of the Journal includes unpublished original research describing new analytical methods, techniques and applications; improved approaches to sampling, both in the field and the laboratory; better methods of preparing samples for analysis; collaborative studies substantiating the performance of a given method; statistical techniques for evaluating data. The Journal will also publish other articles of general interest to its audience, e.g., technical communications; cautionary notes; comments on techniques, apparatus, and reagents.
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