Fig. 1From: Cytotoxic activity of NN-32 toxin from Indian spectacled cobra venom on human breast cancer cell lines a Purification of NN-32. An Ion exchange chromatography of Indian spectacled cobra (Naja naja) venom. b Peak eluted with 0.5 M NaCl solution was further purified by RP-HPLC. HPLC profile showed a single peak of NN-32 with a retention time of 3.6 minBack to article page