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Quantitative assay of verapamil in drugs and serum by capillary isotachophoresis. 1995

T Buzinkaiová, and I Skacáni, and J Netriová
Department of Analytical Chemistry, Faculty of Chemical Technology, Slovak Technical University, Bratislava, Slovak Republic.

Experimental conditions for a simple capillary isotachophoresis (ITP) with conductometric detection have been created for the determination of verapamil in drugs and serum. The limit of detection (LD) was 80 ng.cm-3 for standard verapamil solution. Under optimal experimental conditions and instrumental comparison, the LD of verapamil in serum was 420 ng.cm-3 without sample pretreatment. To lower the LD of verapamil in serum a liquid-liquid extraction was used. The high recovery (more than 94%) facilitated the verapamil ITP analysis at the therapeutic concentration.

UI MeSH Term Description Entries
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D004586 Electrophoresis An electrochemical process in which macromolecules or colloidal particles with a net electric charge migrate in a solution under the influence of an electric current. Electrophoreses
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013607 Tablets Solid dosage forms, of varying weight, size, and shape, which may be molded or compressed, and which contain a medicinal substance in pure or diluted form. (Dorland, 28th ed) Tablet
D014700 Verapamil A calcium channel blocker that is a class IV anti-arrhythmia agent. Iproveratril,Calan,Cordilox,Dexverapamil,Falicard,Finoptin,Isoptin,Isoptine,Izoptin,Lekoptin,Verapamil Hydrochloride,Hydrochloride, Verapamil
D019075 Electrophoresis, Capillary A highly-sensitive (in the picomolar range, which is 10,000-fold more sensitive than conventional electrophoresis) and efficient technique that allows separation of PROTEINS; NUCLEIC ACIDS; and CARBOHYDRATES. (Segen, Dictionary of Modern Medicine, 1992) Capillary Zone Electrophoresis,Capillary Electrophoreses,Capillary Electrophoresis,Capillary Zone Electrophoreses,Electrophoreses, Capillary,Electrophoreses, Capillary Zone,Electrophoresis, Capillary Zone,Zone Electrophoreses, Capillary,Zone Electrophoresis, Capillary

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