2014•Shandong Journal of Traditional Chinese MedicineRequires access

Determination of Trace Elements Content in Astragali Radix by Flame Atomic Absorption Spectrometry

Xu Li

Abstract

Objective:To establish a flame atomic absorption spectrometry(FAAS) method to determine content of trace elements in Astragali Radix. Methods:Collect different sources of Astragali Radix medicinal herbs and use the mixed solution of HNO3and HClO4(4∶1) to digest the samples. The contents of Cu,Zn, Mn,Fe in the sample solution were determined by FAAS. Five kinds of the content of trace elements in Astragali samples were determined. Results:The content of trace element content in Astragali from high to low were Fe Zn Mn Cu,and the recovery rate of the method was 97.96% ~102.18%. Conclusion:This method is rapid,sensitive,good stability,and available for determing trace elements in Astragali Radix.

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Key concepts: Radix (gastropod), Trace element, Atomic absorption spectroscopy, TRACE (psycholinguistics), Chromatography, Analytical Chemistry (journal), Recovery rate, Content determination