T和B淋巴细胞是机体免疫系统中的重要组成之一,但这两种细胞在免疫反应中所起的作用是不同的,当其数量和功能发生变化时,均能使机体免疫反应发生变化。为研究这类细胞的变化,需先对其进行分离,并尽可能的提纯,以便更有效地确定其功能。T和B淋巴细胞分离方法与一般血细胞分离方法相似,大致可分为两类:物理学和生物学方法。前者是根据细胞大小,比重 T and B lymphocytes are one of the important components in the immune system of the body. However, the roles of these two kinds of cells in the immune response are different. When the number and function of T and B lymphocytes are changed, the immune response of the body can be changed . To study this type of cell change, it is necessary to separate it and purify it as much as possible in order to more effectively determine its function. T and B lymphocyte separation method and the general method of separation of blood cells is similar, can be divided into two categories: physical and biological methods. The former is based on cell size, specific gravity