The electrophoresis running times recommended above are based on the equipment and reagents used at the CDC. Run
times may be different in your laboratory and will have to be optimized for your gels so that the lowest band in the S. ser.
Braenderup H9812 standard migrates within 1.0-1.5 cm of the bottom of the gel.
Make note of the initial milliamp (mA) reading on the instrument. The initial mA should be between 110-150 mA. A reading
outside of this range may indicate that the 0.5X TBE buffer was prepared improperly and the buffer should be remade.