Category: Lab Notes

Agarose gel, a porous matrix, acts as a sieve through which molecules can move. The electric field is the force that forces molecules to move through an agarose gel matrix. The molecules must have a net charge, positive or negative, in order to move in an electric field. A neutral molecule will not move in an electric field.

50% Sodium hydroxide solution is commercially available and can be purchased from any of the suppliers listed here.