Objective To develop an ICPMS method for the determination of ten trace metal elements(K,B,Ca,Na,Mg,Al,Zn,Fe,Mn and Se)of H.japonica and comprehensively evaluate its quality with cluster analysis(CA),principal component analysis(PCA)method.Methods The ICPMS method was adopted with internal standard solution of Geand In for the determination of ten trace element after the samples were digested with nitric acid by microwave.PCA and CA heat map method were used to analyze the different and correlations of ten trace elements of H.japonica from different origins and screen the main characteristic elements.Results The detection method had good precision,repeatability,stability,and recovery rate.There were differences in the content of 10 trace elements in 18 different regions of H.japonica The main characteristics of trace elements K,Ca,Na,Mg,Al,and Mn were obtained by principal component analysis,and it could be divided into three categories after cluster analysis.Conclusion This method has simple operation,fast analysis speed,and high accuracy.It can be used for the determination of ten trace elements of H.japonica,it also provides a basis for quality assessment and utilization of H.japonica.
维普
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