本文用较严谨的数字推导,证明了分次浸渍法比一次浸渍法,确能减少有效成分的损失量,并能提高总浸出率,但浸出率提高的幅度不显著。对于分次浸渍法,本文还给出了一些有实用价值的计算公式,并举例说明这些公式的应用。 This article uses a more rigorous numerical derivation to prove that fractional impregnation method is more effective than primary impregnation method, which can effectively reduce the loss of active ingredients and increase the total leaching rate, but the extent of leaching rate increase is not significant. For fractional impregnation, some useful formulae are also given in this paper, and the application of these formulae is illustrated.