2009•Journal of Hunan Institute of Science and TechnologyRequires access

Extraction and Determination of Total Flavonoids from Herba Plantagin

Ying Zhao

Abstract

Extract total flavonoids from Herba Plantagin by the method of ultrasonic wave extraction and the content of total flavonoids were determined by spectrophotomet.The detection wave length was at 510nm and the system of NaNO2-Al(NO3)3-NaOH.It was shown that 40%,1:20,50℃,400W,40min,the extraction rate of flavonoids reached 9.435mg/g.

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Key concepts: Extraction (chemistry), Ultrasonic sensor, Chemistry, Chromatography, Traditional medicine, Physics, Medicine, Acoustics