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Published on Aug 4, 2010
After the electrophoresis is complete, the molecules in the gel can be stained to make them visible. Ethidium bromide, silver, or Coomassie Brilliant Blue dye may be used for this process. Other methods may also be used to visualize the separation of the mixture's components on the gel. If the analyte molecules fluoresce under ultraviolet light, a photograph can be taken of the gel under ultraviolet lighting conditions, often using a Gel Doc. If the molecules to be separated contain radioactivity added for visibility, an autoradiogram can be recorded of the gel.