OBJECTIVE:To compare and analyze the contents of inorganic elements in 15 kinds of Paeonol saffuruticosa from different origins,and to lay the fowndation for the discrimination of its genuine regional drug. METHODS:ICP-MS and ICP-OES were conducted to determine the contents of inorganic elements in 15 kinds of P. saffuruticosa. ICP-MS determination conditions: the powder was 1 200 W, atomizer pressure was 1.6 bar, molecular pump motor current was 2 A, molecular pump speed was 1 000 Hz, bake box tuning parameters were Load 59 and Tune 190; ICP-OES determination conditions: the powder was 1 300 W, plasma gas flow rate was 15 L/min, auxiliary cooling gas flow was 0.2 L/min, atomizer flow rate was 0.8 L/min, reading time (automatic) was 1-5 s, and the injection volume was 1.5 ml/min. SPSS 19.0 software was conducted for the cluster analysis of 15 batches of samples; SIMCA-P 11.0 software was combined with principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) to analyze the main elements in 15 batches of samples. RESULTS: Cluster analysis showed specific areas (Tongling) and non-specific area may be better and divided into two types; PCA can cluster the medicines from different origins into different groups; PLS-DA shows the main elements in samples were lithium, zinc, lead, iron and potassium. CONCLUSIONS: The contents of inorganic elements in P. saffuruticosa genuine regional drug and non-genuine regional drug one show certain differences with the types.
College of Stomatology,Chongqing Medical University,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education
Departemnt of Temporomandibular Joint,Stomatological Hospital of Chongqing Medical University