Objective Studies on the contents variation in compound Danshen tablets,Danshen tablets,Danqi tablets,Guangxin Danshen dripping pills,Compound Danshen dripping pills,Danshen injection,Danxiang guanxin injection,Danshen freeze-dry powder injection.Methods 9 salvianolic acids and 4 tanshinones were analyzed on a Kinetex core-shell technology high performance chromatography column(100 mm × 4.6 mm,2.6 μm) by a gradient elution using 0.1% trifluoroacetic acid aqueous solution and acetonitrile as the mobile phase...