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Protein Expression and Purification Series - Bio-Rad

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CHAPTER 2<br />

FOCUS QUESTIONS<br />

<strong>Protein</strong> <strong>Expression</strong> <strong>and</strong> <strong>Purification</strong> <strong>Series</strong><br />

Focus Questions for Introduction to Chromatography<br />

1. What is the purpose of chromatography?<br />

2. What is the mobile phase in chromatography?<br />

3. What is the stationary phase in chromatography? Give three examples of stationary phase.<br />

4. Name four types of liquid chromatography techniques.<br />

5. What is an anion <strong>and</strong> what is a cation? When would you use anion exchange chromatography versus<br />

cation exchange chromatography?<br />

6. What is an affinity chromatography tag? Name two tags.<br />

7. Does adding an affinity tag to the protein change the protein? Explain your answer.<br />

52 Chapter 2: Focus Questions

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