血清白蛋白是生物体内的重要载体蛋白,它对许多内源性和外源性物质有广泛的结合能力,如能结合脂肪酸、胆红素、无机离子及各种药物等.我们曾系统测定了11种稀土(Ⅲ)与牛血清白蛋白(BSA)的结合常数,k介于104-105之间,还通过紫外及荧光光谱研究了稀土离子(Ⅲ)与BSA相互作用机理. 由于稀土微量元素肥料在农业上的应用及稀土化合物作为药物在临床上的应用,人体内 Serum albumin is an important carrier protein in vivo, it has a lot of endogenous and exogenous substances have a wide range of binding capacity, such as the combination of fatty acids, bilirubin, inorganic ions and various drugs, etc. We have the system to determine The binding constants of 11 kinds of rare earth (Ⅲ) and bovine serum albumin (BSA) were between 104 and 105. The interaction mechanism between rare earth ion (Ⅲ) and BSA was also studied by ultraviolet and fluorescence spectroscopy. Fertilizer applications in agriculture and rare earth compounds as a drug in clinical applications, the human body