Medicinal Plant

2012, v.3(05) 49-51

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Determination of Mineral Elements in Lycium barbarum L. from Ningxia by Sealed Microwave Digestion ICP-AES
Determination of Mineral Elements in Lycium barbarum L. from Ningxia by Sealed Microwave Digestion ICP-AES

摘要(Abstract):

[Objective] To determine the content of mineral elements in Lycium barbarum L.from Ningxia.[Methods] Taking HNO3-H2O2 as the acid-soluble system,the sample was digested by microwave-assisted closed digestion.Inorganic elements in L.barbarum from Ningxia,including K,Ca,Na,Mg,Fe,Cu,Mn,Zn,Pb and Cr,were also detected.Based on the test on recovery rate,the reliability of data was verified.[Results] Relative standard deviations obtained by this method were all smaller than 5%.The recovery rate was between 94.40% and 107.00%.The high accuracy indicated that the data was reliable.[Conclusion] This method was rapid,simple,accurate and could satisfied the sample examination request with more elements together,which provided a scientific method for the research on mineral content and products quality of L.barbarum.

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基金项目(Foundation): Supported by the National Natural Science Foundation of China(31101752 );; Postdoctoral Science Fundation of China(2011M501492)

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