Abstract:

The study aimed to comprehensively evaluate 6 kinds of trace elements of flowers of Gentianaceae in Qinghai-Tibet Plateau. The factor analysis and cluster analysis methods were used to analyze the data of trace elements in flowers of Gentianaceae from Qinghai-Tibet Plateau and find the relationship between 6 kinds of trace elements including Ca, Mg, Cu, Fe, Mn and Zn. Combining with MATLAB2010, the chemometrics methods were made on the trace elements of flowers of Gentianaceae and the efficacy of traditional Chinese medicine. The first commonality factor F1 had greater load on the indexes of Cu, Fe and Mn, and the second commonality factor F2 had greater load on the indexes of Ca and Mg, and the third commonality factor F3 had greater load on the index of Zn. Six kinds of trace elements in flowers of Gentianaceae in the order were manual twist Gentiana flowers >Gentian nubigena Edgew>linear Gentian flowers>hosta blue Gentian flowers>yellow tube Gentiana flowers>tube flowers Gentiana flowers. The study provided the scientific base and theoretical foundation for the relation development of flowers of Gentianaceae resource and for the research of medication efficiency and trace elements．