Objective To study the chemical constituents of Cynanchum auriculatum. Methods Two steroidal glycosides were purified by......

目的建立大鼠血浆中告达庭浓度的LC—MS—MS测定方法。方法取待测大鼠血浆0．2mL，加入炔诺酮（内标）。乙酸乙酯提取、浓缩，取上清液20μL......

研制了具有增强免疫力等保健功能的白首乌含片.首先确定最佳醇提浓度;其次采用L9(34)正交实验设计,以白首乌中C21甾苷相对含量和出......

目的:考查白首乌糖类的含量及对白首乌多糖提取物进行含量测定.方法:分别用80%乙醇及2%盐酸超声波提取白首乌中的可溶性糖及粗多糖......