One can freeze and thaw RIPA buffer 2-3 time without losing its potency as long it is stored on ice during its usage (20-30 min). Store the buffer frozen at -80 degree C.

How long can I keep RIPA buffer?

1. If buffer will be continually used, it is recommended that the 10x buffer be kept at 4°C for 1-2 weeks. For longer periods of time, buffer should be stored at -20°C. Aliquoting of 10x buffer is recommended if many small experiments are to be performed.

Can RIPA buffer be stored at?

Prepared RIPA buffer should be aliquoted and stored at −20°C. Add protease and/or phosphatase inhibitors to a thawed aliquot before immediate use. One milliliter of buffer is sufficient to lyse approximately 5 million cells. ...