2.3 - Changing the Stationary Phase
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Practice Questions
Test your understanding with targeted questions
What is the role of the stationary phase in chromatography?
💡 Hint: Think about what remains fixed in the system.
How does increasing temperature generally affect the retention time?
💡 Hint: Consider the relationship between temperature and particle movement.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the partition constant (K) indicate?
💡 Hint: Think about the interactions of the analyte with both phases.
True or False: Higher temperatures always improve separation quality in chromatography.
💡 Hint: Consider the effects of temperature on interactions.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a chromatographic method to separate a mixture containing volatile and non-volatile components. Specify the type of column, phase, and conditions.
💡 Hint: Consider how volatility influences interaction with stationary and mobile phases.
Assess how changing the mobile phase from water to acetonitrile impacts separation in a mixture of alcohols and hydrocarbons.
💡 Hint: Reflect on the polarity differences and how they pertain to interactions with the stationary phase.
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