The samples of whole blood and bloodstain were MN-typed by the method of one-step sandwich ELISA, monoclonal antibodies include anti-M, N and glycernprotein.

• 目的：对法医学样品中微量液体血、血痕进行MN分型。方法：利用抗M、抗N及抗血型糖蛋白A单抗，采用双位点一步ELISA方法。