本文列述了药材分次浸渍中计算成分损失量的5个公式的推导过程,并且相应地推导出与它们相对应的浸出效率公式,但这些公式都需要附加“扩散平衡”的假设。本文最后运用Noyes-Whitney溶出速度方程对这种假设进行了论证,指出推导这5个公式的“假设”虽不严谨,但在实际工作中完全可以采用。 In this paper, the derivation of five formulas for calculating the component loss in medicinal impregnation is described, and the corresponding leaching efficiency formulas are deduced accordingly. However, these formulae require the assumption of additional “diffusion balance”. In the end, this paper uses Noyes-Whitney dissolution rate equation to demonstrate this hypothesis. It is pointed out that although the “assumptions” deriving these five formulas are not strict, they can be used in practical work.