A quantitative determination method for total flavonoids in blood-red hawthorn leaves recalculated as vitexin 2″-O-rhamnoside using difference spectrophotometry at 392 nm was developed. The error of a single determination of total flavonoids in blood-red hawthorn leaves was ± 1.57% with confidence probability 95%. The contents of total flavonoids in blood-red hawthorn leaves varied from 2.65 ± 0.05 to 3.53 ± 0.06%.
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Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 52, No. 10, pp. 34 – 38, October, 2018.
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Kurkin, V.A., Morozova, T.V., Pravdivtseva, O.E. et al. Quantitative Determination of Total Flavonoids in Blood-Red Hawthorn Leaves. Pharm Chem J 52, 850–854 (2019). https://doi.org/10.1007/s11094-019-1913-y
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DOI: https://doi.org/10.1007/s11094-019-1913-y