Preparation of 0.5 X TBE Buffer -We use 0.5 X TBE Buffer for agarose gel electrophoresis in our lab. The following protocol can be used to prepare 5 gallons: Mix the following in a 2 L flask: -108 g Tris base -55 g Boric acid -40 ml 0.5 M EDTA pH 8.0 -H2O to 2 L Place the flask on a magnetic stirrer until completely dissolved. This results in a 5X concentrated stock of TBE Buffer. Dilute the 2L of 5X stock by 10 in distilled water (add 18 L or 4.5 gallons of distilled water). Mix well. The buffer is ready for use. -Modified from Short Protocols in Molecular Biology, 5th edition Aguirre Lab DNA TBE Buffer Prep Protocol Last Updated: Apr/28/10