Résumé
Objective:To study the origin traceability of anemarrhenae rhizoma from Bozhou and Hebei based on multi-element fingerprints technology , and establish a discrimination model .Methods:The contents of 48 elements were determined by using induc-tively coupled plasma mass spectrometry ( ICP-MS) for 44 samples of anemarrhenae rhizome from Bozhou and Hebei province .Princi-pal component analysis ( PCA) and orthogonal partial least squares discrimination analysis ( OPLS-DA) were applied in the data analy-sis to screen out the significant elements .And then Fisher linear discrimination analysis was used to determine the origin of anemarrhe-nae rhizoma and the discrimination models were developed .Results:Two discrimination models were developed by the discrimination a-nalysis of the whole model method with nine significant elements identified by PCA and OPLS -DA, and 100％correct classification and 95.5％cross validation were achieved by the models .Conclusion: It is a promising approach to classify the geographical origin of anemarrhenae rhizome based on multi-element fingerprints analysis combined with multivariate statistical analysis .The discrimination models are good enough to be applied in the origin traceability of anemarrhenae rhizome.