Title: Determination of the Total Flavonoids Content of Indocalamus Leaves
Abstract: OD of ethanol extracts of Indocalamus leaves was investigated by colorimetry of NaNO_2-Al(NO3)3 at 510 nm.With rutin being taken as the standard sample, the regression equation of rutin standard working curve: c(mg·L~(-1))=95.43A-0.735 9 was established,and the correlation coefficient is r=0.999 8.The time of determining OD was decided by the experiment of stability.The best condition of water bath extracting and supersonic extracting was decided by the experiment of orthoganol design,and the frequency of extraction was experimented.The total flavonoids content of Indocalamus leaves was 1.38%.By the experiment of reclamation ratio,the credibility of this method was testified.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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