id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajbspi-122368	Yuldasheva Shakhlo Khabibullayevna	Technology and Qualitative Analysis of Liquid Extract Obtained on The Basis of Plant Raw Materials Polygonum Hydropiper L. And Hypericum Perforatum L.	2025	3	.pdf	application/pdf	1398	71	54	At the same time, after 30 minutes, the optical density of 1 ml of a comparable solution (isn rutin) is measured using a sample of a compensatory solution (1 ml of liquid extract, 5 ml of 96% ethyl alcohol and 2 ml of 5% acetic acid in 70% ethyl alcohol, put in a 25 ml flask and brought to the line of the measuring solution flask with 70% ethyl alcohol). Keywords: Liquid extract, flavonoids, Polygonum hydropiper and Hypéricum perforátum, percolation, spectrophotometry.	cache/ajbspi-122368.pdf	txt/ajbspi-122368.txt