Set up a stable and effective method of isolation and purification early pregnancy factor for getting enough EPF as antigen preparing for gaining the monoclonal antibody of EPF.

• 建立一条稳定高效的分离纯化EPF的技术路线，以获得充足高纯度的EPF作为抗原，为进一步制备抗-EPF单克隆抗体作准备。