采用激光光散射的方法，研究了Ｃａ￣（２＋）、Ｌａ￣（３＋）、Ｅｕ￣（３＋）存在下，ＮａＴＣ胶团及其与胆固醇、卵磷脂形成的混合胶团平均流体力学半径变化，发现金属离子能使胶团长大，并对胶团的结构及对胆固醇的增溶性有影响。以芘为荧光探针，研究了Ｃａ￣（２＋）、Ｌａ￣（３＋）离子对胶团内部微极性的影响，及通过Ｅｕ￣（３＋）的荧光光谱表征其配位场特征，证明金属离子与胆盐胶团间相互作用发生在胶团的表面。 The change of mean hydrodynamic radius of the mixed micelles of NaTC and its mixture with cholesterol and lecithin in the presence of Ca ~ (2 +), La ~ (3 +) and Eu ~ (3 +) was investigated by laser light scattering. It was found that metal ions can make micelles grow, and the structure of the micelles and solubility of cholesterol have an impact. Using pyrene as a fluorescent probe, the effects of Ca 2+ and La 3+ ions on the micropolarity in micelles were studied, and their coordination fields were characterized by fluorescence spectra of Eu 3+. Interactions between ions and bile salts occur on the surface of micelles.