Viral Clearance Using Traditional, Well-Understood Unit Operations: Session 1.2. Anion Exchange Chromatography; and Session 1.3. Protein A Chromatography

### Background Process performance for both AEX ([1][1], [2][2]) and AEX membrane absorbers ([3][3], [4][4]) is generally effective and robust when performed within a bracketed set of operating conditions ([1][1]). The key process parameters that could affect viral clearance for the AEX step