Determination of Ursodeoxycholic Acid and Chenodeoxycholic Acidin Chinese Medicinal Compound Preparations by TLC-densitometry Effect of Tanreqing Injection in various formula compatibilities on pharmacokinetics of main components HPTLC Densitometric Determination of Free Bile Acids in Bezoar Rapid identification of two new isomers in bear bile powder by LC-Q-TOF-MS combined with PCC oxidation In vivo pharmacokinetics of major bioactive components from Tanreqing Injection in rats