Forensic science
Luminol is a chemical that can be used to show trace amounts of blood by creating a light producing chemical reaction when mixed with hemoglobin. Luminol powder is mixed into a liquid containing hydrogen peroxide and other chemicals. This mixture will then be sprayed over the area that is being examined. The reaction of the Luminol spray mixing with the iron in blood will then produce a blue glow that can be seen in a dark room. Other substances that can accidentally have the same reaction with Luminol are: bleach, urine, faeces horseradish. Unfortunately Luminol can destroy other crime scene evidence so it is usually used after other options have been explored.
If that suspected blood has anemia means the iron content is reduced and haemoglobin also reduced right so on that time is there any chance for the reaction luminol ?