Determination of the amount of flavonoids in the leaves of the series

This article briefly provides some data on the use of medicinal plants in the treatment of various diseases, on the distribution of flavonoids in the plant world. The authors carried out a photometric determination of the amount of flavonoids in the leaves of the series. The flask was then cooled to room temperature and filtered through a filter paper into a 100 ml volumetric flask. The extraction was performed once more, then once again with 90% alcohol for 30 min.

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