运用紫外和荧光光谱研究丁二酰化壳寡糖镧配合物与牛血清白蛋白(BSA)的相互作用。结果表明:随稀土配合物浓度的增加,BSA的紫外光谱表现增色效应并伴有蓝移;稀土配合物可有规律地猝灭BSA的内源荧光,猝灭方式为静态猝灭,并计算了结合常数和结合位点数。 Study on the Interaction of Succinylated Chitooligosaccharides Lanthanum Complex with Bovine Serum Albumin (BSA) by UV and Fluorescence Spectroscopy. The results showed that with the increase of the concentration of rare earth complexes, the UV spectrum of BSA showed a color-increasing effect accompanied by a blue shift. The rare earth complexes could quench the endogenous fluorescence of BSA regularly and the quenching mode was static quenching. Binding constants and number of binding sites.