The Secondary structure of earthworm Calmodulin(CaM) in thin film was measured by using FT IR spectroscopic method and curve fitting technique, and the effects of Ca 2+ and Tb 3+ were investigated in detail.

• 运用FT－IR方法的分辨率增强及曲线拟合技术对水化膜中蚯蚓钙调素CaM的二级结构以及加入不同比例Ca2＋、Tb3＋后CaM二级结构的变化进行了研究。