Description
For staining a gel after electrophoresis, dilute a sample of the stock solution to 0.5 µg/ml with water and incubate the gel for 15-30 min. Destaining is usually not needed but can be carried out in water for 15 min if decreased background is necessary. The DNA bands can then be detected on a UV light box (254 nm wavelength). Ethidium bromide can also be incorporated into the gel and running buffer at 0.5 µg/ml and visualized immediately after electrophoresis.Ethidium bromide is an aromatic cationic dye, is one of the most studied DNA-intercalating agents and has been used widely as a molecular probe. It is also used in the prophylaxis and treatment of animal trypanosomiasis in affected areas worldwide