V2EX retentate

Retentate

Definition / 定义

retentate(截留液;保留液):在膜分离(如超滤、反渗透、纳滤)或过滤过程中,被膜/滤材截留在进料侧、未通过膜的那部分流体或溶质浓缩液。常与 permeate(透过液)相对。

Pronunciation / 发音

/tn.tet/

Examples / 例句

The retentate was collected for further analysis.
截留液被收集起来做进一步分析。

As pressure increased, the permeate flow rose, while the retentate became more concentrated in salts and proteins.
随着压力增加,透过液流量上升,而截留液中的盐和蛋白质浓度变得更高。

Etymology / 词源

来自拉丁语词根 **retent-**(“保留、 удерж住”之意,对应 retain “保留”),加上名词后缀 -ate 构成,表示“被保留/截留的那一部分(产物流)”。该词主要用于工程与化学语境。

Related Words / 相关词

Literary Works / 文学作品

  • 《Membrane Technology and Applications》(R. W. Baker):在膜过程章节中常用 retentate/permeate 描述两股产物流。
  • 《Membrane Separation Processes》(R. Noble & S. Stern 编):在超滤/纳滤等工艺讨论中频繁出现 retentate
  • 《Handbook of Membrane Separations: Chemical, Pharmaceutical, Food, and Biotechnological Applications》:以 retentate 指代截留侧产物,用于食品与生物分离案例。
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