Ribonuclease inhibitor: Ribonuclease inhibitor (RNase inhibitor) BIO BASIC INC. RNase Inhibitor is a highly purified, nuclease-free preparation. It is supplied at a concentration of 40, 000units/ml, in a buffer containing 20mM HEPES-KOH (pH 7.6), 50mM KCl, 5mM DTT and 50% glycerol. Each lot is rigorously tested and is guaranteed free of non-specific endonuclease, e x onuclease, and RNase activity. Placental RNase inhibitor is effective against RNase A and other eukaryotic RNase A-like proteins....