The page describes the key concepts and steps involved in protein purification and characterizes different techniques used in the purification process. It outlines various chromatographic methods such...The page describes the key concepts and steps involved in protein purification and characterizes different techniques used in the purification process. It outlines various chromatographic methods such as ion exchange, size-exclusion, hydrophobic interaction, and affinity chromatography. Additionally, it explains electrophoresis methods like SDS-PAGE and 2D electrophoresis.