Abstract: The aim of this study was to establish a method for simultaneous analysis of inorganic elements in Ophiopogon japonicus by inductively coupled plasma optical emission spectromter (ICP-OES),and to evaluate the different batches.The sample solutions were analyzed by ICP-OES after wet digestion.The data of correlations and principal components were analyzed with the SPSS 21.0 software.The results showed that the contents of Ca,P,K,Mg,Fe and Al were abundant,while the contents of Co,Hg,Se,Si,Sn and V were not detected or below the detection limit in O.japonicus.But it was important to emphasize that the content of Cd was above the Standard of WM/T2-2004 in three samples.And there were some correlations among the inorganic elements in O.japonicus.The PCA analysis results showed that As,Ba,Cu,K,Mg,Mn,P,Sr and Ti may be the characteristic elements in O.japonicus.This study provided the evidence for the quality control and safety evaluation of O.japonicus.

Key words: Ophiopogon japonicus, inorganic elements, inductively coupled plasma optical emission spectromter, principal component analysis