RNA Storage buffer is 1 mM sodium citrate pH 6.4 in RNase-free water. The buffer is recommended for precipitate dissolving and long-term storage of RNA after e.g. RNA isolation using organic solvents like RNA Extracol (cat. no. E3700). RNA is stabilized in the solution by low pH (6.4) preventing from the nucleic acids hydrolysis and by ions chealation by citrate, which in turn inhibit RNase and DNase activity. RNA dissolved in RNA Storage can be used directly for reverse transcription, RT-qPCR, etc.
RNA dissolved in RNA Storage should be kept in -80°C.