Medicinal Plant

2012, v.3(06) 8-9+13

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Determination of the Content of Total Flavonoids in Sophora alopecuroides L. Residues
Determination of the Content of Total Flavonoids in Sophora alopecuroides L. Residues

摘要(Abstract):

[Objective] To establish a method for determining the content of total flavonoids in residues, so as to provide basis for the reuse of Sophora alopecuroides L. [Method] The content of total flavonoids in S. alopecuroides residues was determined by NaNO2-Al(NO3)3-NaOH spectrophotometry. [Result] The regression equation was Y=11.403X+0.002 1, R=0.999 8, confirming a good linear relationship between the concentration and absorbance of rutin. The recovery of total flavonoids ranged from 98.67% to 100.33% with the RSD of 1.65% (n=9). In addition, the average content of total flavonoids in S. alopecuroides was determined as 3.90 mg/g. [Conclusion] The method is easy, convenient and low cost, which can be used for determining the content of total flavonoids in S. alopecuroides residues.

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基金项目(Foundation): Supported by the Nature Fund of Ningxia Hui Autonomous Region(NZ0845);; Key Opening Laboratory Fund of State Ethnic Affairs Commission(2008SY15)

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