During C –TAB phenol chloroform based jellyfish DNA isolation procedure I have confused with a step for buffer preparation. Any one helps me to clarify the required amount of NaOH for 0.02M EDTA (pH 8). In addition to this, please help with details about the C-TAB Phenol-Chloroform chemical preparation for jellyfish .Now I am following modified CTAB Phenol-Chloroform method (Dawson et al. 1998).