RESUMEN
AIM: To detect the total amount of heavy metals and the content of Pb,Cd,Hg in Yuanhuzhitong Tablets (Rhizoua Corydalis. Radix Angelicae Dahuricae). METHODS:The method of detecting the total amount of heavy metals in Volume 1 of 2000 China Pharmacopoeia and the methods of analyzing the content of Pb,Cd,Hg in Import and Export Agriculture Standard of Medical Plants and Pharmacentical issued by Economic Cooperation Department of Import and Export Bureau were discussed. RESULTS : The total amount of heavy metals is in the limit of the standard and amount of Pb、Cd、Hg is overproof to varying degrees. CONCLUSION :Because the standard of total heavy metals can not quarantee the quality of Chinese drugs,so we should establish available method to limit the amount of poisonous elements Pb、Cd、Hg.