汝海龙等【32】对杭白菊总黄酮 （TFCM）的研究发现TFCM对血管的舒张作用表现为内皮依赖性，其舒张作用与其直接 抑制电压依从性钙通道、受体操纵性钙通道、细胞内钙释放及...
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方法：采用正交试验法，以浸膏得率和总黄酮含量为考察指标，对杭白菊的超声提取条件进行优选。
Method: the optimizing ultrasonic extraction condition on the basis of extractive yield and flavonoids were determined by orthogonal design.
方法分别采用高效液相色谱法和紫外分光光度法测定杭白菊提取物中活性成分及总黄酮含量。
METHODS UV and HPLC method were applied to determine total flavonoids and active components of extract from Chrysanthemi Flos.
结果不同存储时间的杭白菊，其总黄酮含量有明显变化。
Results As the storage time and method differed , the contents of total flavonoids showed marked variation.
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