[Retracted] Efficacy and Safety of rCCK96-104PE38 Targeted Drug in the General Surgical Treatment of Colon Cancer

Figure 3

The results of Ni-NTA affinity chromatography column purified rCCK_96-104PE38 gradient elution. Note: M: maker; 1: flowing through; 2-10: imidazole concentration elution collection solution of 50 mM, 100 mM, 150 mM, 200 mM, 250 mM, 300 mM, 350 mM, 400 mM, and 450 mM.