不同采收期赤芍中6种有效成分的含量测定及其变化规律研究(2)
0.381%， respectively. On May 30th， the drying rate of Radix Paeoniae Rubra was the lowest (about 33%)， and on Sept. 15th， the drying rate was the highest (about 49%). The contents of gallic acid and paeoniflorin in the leaves of P. lactiflora were higher than the root during Jul.-Oct. Results of principal component analysis showed that the variance contribution rates of the first two principal components were 71.845% and 18.170% ......
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