agarose electrophoresis

例句：

1. 1.The gel was used as a medium for electrophoresis.
   该凝胶被用作电泳的介质。
2. 2.The gel was used to separate the proteins.
   该凝胶被用来分离蛋白质。
3. 3.The gel was used to study the properties of the protein.
   该凝胶被用来研究蛋白质的性质。