Figure 4. SEC-HPLC elution profile comparison of protein samples obtained at different steps of the purification process of the original and optimized purification processes. (A) Original process post TFF; (B) Optimized process post TFF (C) Original process post QXL (D) Optimized process post QXL; (E) Original process post Butyl; (F) Optimized process post Butyl; (G) Original process post SEC; (H) Optimized process post SEC.