Evaluation of Radix Salviae Miltiorrhizae and Its Preparation A Study on Extraction Technology of Radix Isatidis TLC-Densitometric Determination of Sarsasapogenin in Anemarrhena asphodeloides Bge Amygdalin Contents in Seeds of 11 Kinds of Plants of the Genus Prunus Determination of Total Saponins,Alkaloids and Sipeimine in Four Species of Chuanbeimu Delermination of Alkaloids in Evodia rutaecarpa (Juss.) Benth.and Its Processed Products by TLC-Densitometry Quantitative Estimation of Active Principles Polyphenols in Green Tea Quantiative Analysis of Bergenin in Herta Ardisia japonica BI by TLC-Densitttometric Method Studies on the Identification of Schisardra by TLC-Densitometry Studies on Quality Standards for Qingwei Huanglian Pills Determination of Ursodeoxycholic Acid and Chenodeoxycholic Acidin Chinese Medicinal Compound Preparations by TLC-densitometry Quantitative Determination of Genkwanin in Flos Genkwa by TLC-densitometry Studies on Quantitative Determination of Total Flavonoid in Qingpi Zhiqiao and Zhishi by TLC-Densitometric Method Quantitative Determination of 5 Alkaloids in Plants of Coptis from China A TLC Densitometric Method for the Determination of Arecoline Content in Semen Arecae from Different Producing Areas Dual-Wevelength TLC Densitometric Determination of Alkaloids in Radix Stephaniae Tetrandrae Determination of Panaxadiol and Paanaxatriol in Shihu Yeguang Pills Experimental Studies on the Quality Control of Xiaoluo Pills Determination of Oleanolic Acid in Aralia elata (Miq.) Seem. by TLC-Densitometry Studies on Relationship between Alkaloids in Semen Strychni and Its Processing