preparative zone electrophoretic separation

例句：

1. 1. The researchers developed a new method for preparatory zone electrophoretic separation of proteins.
   研究人员开发了一种新的蛋白质预准备区电泳分离方法。
2. 2.In this study, we focused on the preparatory zone electrophoretic separation of DNA fragments.
   在本研究中，我们专注于DNA片段的预准备区电泳分离。
3. 3.The preparatory zone electrophoretic separation technique has been widely used in biotechnology research.
   预准备区电泳分离技术在生物技术研究中得到了广泛应用。