Determination of Contents of Trace Elements in Rhizoma Chuanxiong by Flame Atomic Absorption Spectrometry

Objective:To set up a flame atomic absorption spectroscopy(FAAS) method with contents of trace elements in Rhizoma Chuanxiong.Method:This paper collected different sources of Rhizoma Chuanxiong,and used a mixed solution of conc.HNO3 and HClO4(4:1) to digest the sample of Rhizoma Chuanxiong.The content of Mn,Fe,Cu,Zn in the sample solution was determined by FAAS,a total of six Rhizoma Chuanxiong samples's trace elements were determined.Result:The content of root and leaf rank from high to low was Fe,Zn,Mn,Cu.The content of ibrous root rank from high to low was Fe,Zn,Cu,Mn.The content of node rank from high to low was Fe,Mn,Zn,Cu.The recovery rate of this method was 97.2%~100.2%.And its RSD was less than 4.2%.Conclusion: The method was of high sensitivity,good stability,for further development of Rhizoma Chuanxiong resources and quality control to provide the reference.