The driving force of the transportation is differences of concentration of hydrogen ion between feed phase and stripping phase.

料液相与回收相溶液之间的氢离子浓度之差是镉离子迁移的动力；

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Using the definition and calculation formula of distribution coefficients, the deduction of the hydrogen ion concentration in solutions will be simple, clear and exact.

利用分布系数的定义和计算公式推导溶液的氢离子浓度，该方法思路简单、明了、求解准确。

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However, there is only a moderate correlation between the hydrogen ion concentration of a food and its perceived sourness due to the penetration of non-dissociated acids inside the taste cells.

然而，因为未分离酸渗透到味觉细胞中，饲料的氢离子浓度和它的酸味感觉之间仅仅有一个中度相关性。

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