Cut the agarose gel slice containing relevant DNA fragments and remove any extra agarose
to minimize the size of the gel slice. Transfer up to 300 mg of the gel slice to a 1.5 ml
microcentrifuge tube. Add 500 µl of Gel/PCR Buffer to the sample then mix by vortex.
Incubate at 55-60ºC for 10-15 minutes or until the gel slice is completely dissolved. During
incubation, invert the tube every 2-3 minutes. If the color of the mixture has turned from yellow
to purple, add 10 µl of 3M Sodium Acetate (pH5.0) and mix thoroughly. This will adjust pH and
the color will return to yellow. Cool the dissolved sample mixture to room temperature.
NOTE: If using less than 300 mg of gel slice, Gel/PCR Buffer does not need to be scaled. If using more
than 300 mg of gel slice, separate it into multiple 1.5 ml microcentrifuge tubes.