Ambion® 0.1 mM EDTA is a commonly recommended storage solution for RNA samples. 0.1 mM EDTA in nuclease-free ultrapure water. Supplied in 50 mL bottles. The final step in every RNA isolation protocol is to resuspend the purified RNA pellet. After laborious isolation of RNA, it is critical to resuspend and store the pellet in a safe, RNase-free solution. 0.1 mM EDTA is prepared in a state-of-the-art manufacturing facility using reagents of the highest purity under strictly monitored conditions. Strict quality control procedures are then implemented to guarantee its purity and performance.