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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the mobile phase in gas chromatography?
💡 Hint: Think about what moves through the chromatography system.
Question 2
Easy
What does the partition constant (K) indicate?
💡 Hint: Recall how compounds behave in the column.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What role does the mobile phase play in gas chromatography?
- Carries the sample through the stationary phase
- Holds the stationary phase in place
- Increases pressure in the column
💡 Hint: Remember the definition of the mobile phase.
Question 2
Is higher retention time always better in chromatography? (True/False)
- True
- False
💡 Hint: Consider the trade-offs in analysis time versus separation quality.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A sample of unknown hydrocarbons is injected into a gas chromatograph. Explain how you would use retention time to identify individual components in the mixture.
💡 Hint: Think about how standards help confirm identities.
Question 2
You notice that increasing flow rate in your gas chromatography setup decreases your separation quality. Discuss why this occurs and offer potential adjustments.
💡 Hint: Reflect on the balance between speed and quality.
Challenge and get performance evaluation