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  • 1 Jagiellonian University Collegium Medicum, Department of Inorganic and Analytical Chemistry Medyczna 9 30-688 Cracow Poland
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A densitometric thin-layer chromatographic method has been established for quantitative determination of β-sitosterol in pumpkin seed oil ( Cucurbita pepo L.). Chromatography was performed on silica gel 60 F 254 TLC plates, with toluene-ethyl acetate-glacial acetic acid 15:4:1 ( v/v ) as mobile phase. Densitometric quantitation was performed at 525 nm. The method was validated by determination of linearity (15–750 μg mL −1 ), precision (RSD = 2.36%), and limits of detection (LOD = 0.65 μg per band) and quantification (LOQ = 1.99 μg per band). Average recovery from the pharmaceutical preparation was 96.15%. The method enables simple, rapid, and precise quantitative determination of β-sitosterol in pharmaceutical preparations and can be used for routine quality control.

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Journal of Planar Chromatography - Modern TLC
Language English
Size A4
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1988
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