The old blood stain detection kit is specially used to detect anti-human transferrin in human blood. It is a blood stain species identification product. Because of the influence of illumination and temperature, the heme in human blood will change with time. If the antihuman hemoglobin test kit is used to detect old blood stains, the test results may be weak positive or even negative. Transferrin in human blood can exist in blood stains for a long time. If the old blood stain detection kit is used to detect the old blood stains, false negative results can be avoided.
Aluminum foil bag sealed packaging, 1 part/bag 20 parts/box each kit with a bottle of special dilution soaking liquid
