The amount of kit is calculated according to the proportion of cells of different purpose in the tissue, for example, there are about 1*10^8 cells in the spleen or bone marrow cells of a mouse. Among them, CD3+ T cells accounted for about 30%, CD4+ T cells accounted for about 20%, CD8+ T cells accounted for about 10%, B cells accounted for about 60%, and NK cells accounted for about 1%. In addition, in human peripheral blood PBMC, there are about 1-2*10^6 cells per milliliter of whole blood, CD3+T cells account for about 45-70%, CD4+T cells account for about 10-40%, CD8+T cells account for about 2-20%, and CD14+ monocytes account for about 10-30%. NK cells accounted for about 5-10%, and B cells accounted for about 5-15%.