preparative partition chromatography

例句：

1. 1. Thepreparative partition chromatography method is used to separate complex mixtures into their constituent parts.
   预分离分区色谱法用于将复杂的混合物分离成其组成部分。
2. 2. The PPC technique has been successfully applied in the analysis of biomolecules, such as proteins and nucleic acids.
   预分离分区色谱法技术已被成功应用于生物分子的分析，如蛋白质和核酸。
3. 3. The PPC method provides a rapid and efficient way to identify and purify bioactive compounds from natural sources.
   预分离分区色谱法提供了一种快速而有效的方法，用于从天然来源中鉴定和纯化生物活性化合物。