کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1223762 967900 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-performance thin layer chromatography method for estimation of conessine in herbal extract and pharmaceutical dosage formulations
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
High-performance thin layer chromatography method for estimation of conessine in herbal extract and pharmaceutical dosage formulations
چکیده انگلیسی
A new, simple, sensitive, precise and robust high-performance thin layer chromatographic (HPTLC) method was developed for the estimation of conessine in herbal extracts and pharmaceutical dosage forms. Analysis of conessine was performed on TLC aluminium plates pre-coated with silica gel 60F-254 as stationary phase. Linear ascending development was carried out in twin trough glass chamber saturated with mobile phase consisting of toluene-ethylacetate-diethyl amine (6.5:2.5:1, v/v/v) at room temperature (25 ± 2 °C). After derivatized the plate with modified Dragendroff's reagent, Camag TLC scanner III was used for spectrodensitometric scanning and analysis of the plate in absorbance mode at 520 nm. The system was found to give compact spots for conessine (Rf value of 0.82). The data for calibration plots showed good linear relationship with r2 = 0.9998 in the concentration range of 1-10 μg with respect to peak area. The present method was validated for precision and recovery. The limits of detection and quantification were determined. Statistical analysis of the data showed that the method is reproducible and selective for estimation of conessine.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical and Biomedical Analysis - Volume 46, Issue 2, 22 January 2008, Pages 391-394
نویسندگان
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