It was practicability to study the chelation action by using model compound instead of the chelation film specimens.The chelation mechanism was discussed by using model compound, XPS and FI\|IR means.

• 利用模型化合物和膜层试样光电子能谱(XPS)测试、红外光谱测试,探讨了用模型化合物代替原位形成的膜层试样进行研究是可行的,提出了螯合过程的初步机理。