Determination of Phenolics and Flavonoids of Some Useful Medicinal Plants and Bioassay-Guided Fractionation Substances of Sclerocarya birrea (A. Rich) Hochst Stem (Bark) Extract and Their Efficacy Against Salmonella typhi

一些有用药用植物的酚类和黄酮类化合物的测定以及 Sclerocarya birrea (A. Rich) Hochst 茎 (树皮) 提取物的生物测定指导分馏物质及其对伤寒沙门氏菌的功效