Quantitative Determination of Swertiamar
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Boryana Nikolova-Damyanova; Nedjalka Handjieva
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Article
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1996
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John Wiley and Sons
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English
⚖ 247 KB
Swertiamarin and gentiopicroside were quantified simultaneously using thin layer chromatography (silica gel) with densitometry (240 nrn). The single calibration graph was linear in the interval 1.0-16.0 pg in the presence of an external standard. The standard deviation did not exceed 5% and the rela