Fingerprint Identification between Gastrodia elata Blume and Its Counterfeits with Infrared Spectroscopy SPECTROSCOPIC CHARACTERISTICS OF SOIL ORGANIC MATTER IN DIFFERENT Comparison Between the Influences of Phosphatidylcholine and Triton X-100 on the Protein Secondary Structures and Oxygen-evolving Activity of Photosystem ¢ò EFFECT OF Cr ON SECONDARY STRUCTURE OF YEAST PROTEIN WITH FT-IR Ultrasound-assisted Extract of Water-soluble Polysaccharides from Phyllanthus emblica Preparation and acute toxicity test of Bruceae Fructus oil and β-cyclodextrin polymer inclusion complexes Preparation, purification, and analysis of chemical composition of anti-tumor polysaccharide from Poria cocos Preparation, purification, and analysis of chemical composition of anti-tumor polysaccharide from Poria cocos